Send Email in JavaScript from Windows Store Apps - UWP - HTML5 - Tutorial

EASendMail is a SMTP component which supports all operations of SMTP/ESMTP protocols (RFC 821, RFC 822, RFC 2554). It also supports Exchange Server Web Service and WebDAV protocols. This tutorial introduces how to send email in JavaScript HTML5 Windows Store Apps using SMTP. It also demonstrates SSL, Embedded Images, Asynchronous Mode and Multiple Threads usage.

Send email in a simple JavaScript HTML5 Windows Store App project

To better demonstrate how to send email using EASendMail, let’s create a JavaScript HTML5 Windows Store App project at first, and then add the reference of EASendMail in your project.

JavaScript windows store app project

After you created the project, right click “js” folder in Solution Explorer and add a new JavaScript File named “send_email.js”.

JavaScript send email js

Then include “send_email.js” in default.html and add two input (button) HTML tags and one span HTML tag in default.html like this:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>JavaScript_Windows_Store_App</title>
    <!-- WinJS references -->
    <link href="//Microsoft.WinJS.1.0/css/ui-dark.css" rel="stylesheet" />
    <script src="//Microsoft.WinJS.1.0/js/base.js"></script>
    <script src="//Microsoft.WinJS.1.0/js/ui.js"></script>
    <!-- JavaScript_Windows_Store_App references -->
    <link href="/css/default.css" rel="stylesheet" />
    <script src="/js/default.js"></script>
    <script src="/js/send_email.js"></script>
</head>
<body>
    <p>
     <input type="button" id="btnSend" value="Send" style="width: 120px;" />
     <input type="button" id="btnCancel" value="Cancel" style="width: 120px;" disabled="disabled" />
    </p>
    <p>
        <span id="textStatus"></span>
    </p>
</body>
</html>

Installation

EASendMail is a SMTP component which supports all operations of SMTP/ESMTP protocols (RFC 821, RFC 822, RFC 2554). It also supports Exchange Web Service (EWS) and WebDAV protocols. Before you can use the following example codes, you should download the EASendMail Installer and install it on your machine at first.

Install from NuGet

You can also install the run-time assembly by NuGet. Run the following command in the NuGet Package Manager Console:

Install-Package EASendMail

Note

If you install it by NuGet, no sample projects are installed, only .NET assembly is installed.

Add Reference

To use EASendMail SMTP Component in your Windows Store App/UWP project, the first step is “Add reference of EASendMail to your project”. Please create/open your project with Visual Studio, then select menu -> Project -> Add Reference -> Browse -> Browse..., and select the Installation Path\Lib\[portable/uap]\EASendMail.winmd from local disk, click Open -> OK, the reference will be added to your project, and you can start to use EASendMail SMTP Component in your project.

SMTP Component for Windows Store App

Windows Runtime Assembly

After compiling your project, a copy of EASendMail.winmd will be generated by compiler in same folder of your application executable file. Packing all the *.winmd, *.dll and *.exe in the folder to installer is ok. As EASendMail.winmd is a pure Windows 8/10 Runtime Component, it doesn’t require “Regsvr32” (self-register) to register the dll.

File .NET Framework Version
Lib\portable-win81+wpa81\EASendMail.winmd Built with .NET Framework 4.5.1
It requires Windows Store App Runtime 8.1 or later version.
Lib\uap10.0\EASendMail.winmd Built with Universal Windows Platform.
It requires Windows 10 or later version (Universal Windows Platform).

[JavaScript - Send email from Windows Store App - HTML5]

Now add the following codes to the send_email.js and change From, To, Server, User and Password to corresponding value and compile your project.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App, do not reply";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

If you set everything right, click the button, you can get “email was sent successfully”. If you get “failed to send email with the following error:”, then please have a look at the following section.

Common SMTP Transport Error

When you execute above example code, if it threw an exception about “Networking connection” or “No such host”, it is likely that your SMTP server address is not correct. If it threw an exception about “5xx Relay denied”, it is likely that you did not set user authentication. Another common error is “5xx Must issue a STARTTLS command first” or “No supported authentication marshal found!”, that is because your SMTP server requires user authentication under SSL connection. You can set the SSL connection to solve this problem. You can learn more detail in Troubleshooting section.

Where can I get my SMTP email server address, user and password?

Because each email account provider has different server address, so you should query your SMTP server address from your email account provider. To prevent spreading email from the server, most SMTP servers also require user authentication. User name is your email address or your email address without domain part, it depends on your email provider setting.

When you execute above example code, if you get error about “Networking connection” or “No such host”, it is likely that your SMTP server address is not correct. If you get an error like “5xx Relay denied”, it is likely that you did not set user authentication. Another common error is “5xx Must issue a STARTTLS command first” or “No supported authentication marshal found!”, that is because your SMTP server requires user authentication under SSL connection. You can set the SSL connection to solve this problem.

Finally, if you have already set your account in your email client such as Outlook or Window Mail, you can query your SMTP server address, user in your email client. For example, you can choose menu -> “Tools” - > - “Accounts” - > “Your email account” - > “Properties” - > “Servers” in Outlook express or Windows Mail to get your SMTP server, user. Using EASendMail to send email does not require you have email client installed on your machine or MAPI, however you can query your exist email accounts in your email client.

JavaScript xaml email sample

Email Address Syntax and Multiple Recipients

Mail Address Syntax in EASendMail SMTP Component:

// For single email address (From, ReplyTo, ReturnPath), the syntax can be:
// ["][display name]["]<email address>

// For example:
"Tester, T" <test@adminsystem.com>
Tester <test@adminsystem.com>
<test@adminsystem.com>
test@adminsystem.com

// For mulitple email address (To, CC, Bcc), the syntax can be:
// [single email],[single email]...
// (,;\r\n) can be used to separate multiple email addresses.

// For example:
"Tester, T" <test1@adminsystem.com>, Tester2 <test2@adminsystem.com>,
    <test3@adminsystem.com>, test4@adminsystem.com

[JavaScript - Email syntax]

To better understand the email address syntax, please refer to the following codes.

// From is a MailAddress class.
// The syntax is like this: "test@adminsystem.com" or "Tester<test@adminsystem.com>"
oMail.from = new EASendMail.MailAddress( "Tester", "test@adminsystem.com" );
oMail.from = new EASendMail.MailAddress( "Tester<test@adminsystem.com>");
oMail.from = new EASendMail.MailAddress( "test@adminsystem.com" );

// To, Cc and Bcc is a AddressCollection class,
// Multiple addresses are separated with (,;)
// The syntax is like this: "test@adminsystem.com, test1@adminsystem.com"

// The example code without implicit converting
oMail.to = new EASendMail.AddressCollection( "test1@adminsystem.com, test2@adminsystem.com" );
oMail.to = new EASendMail.AddressCollection( "Test1<test@adminsystem.com>, Test2<test2@adminsystem.com>");
// You can add more recipient by Add method
oMail.to.add( new EASendMail.MailAddress( "tester", "test@adminsystem.com"));

// You can also add carbon copy (CC) or blind carbon copy (BCC) in the email.
oMail.cc.add( new EASendMail.MailAddress( "CC recipient", "cc@adminsystem.com"));
oMail.bcc.add( new EASendMail.MailAddress( "Bcc recipient", "bcc@adminsystem.com"));

From, ReplyTo, Sender and Return-Path

From, Reply-To, Sender and Return-Path are common email headers in email message. You should always set From property at first, it is a MUST to identify the email sender. The following table lists the header and corresponding properties:

Header Property
From SmtpMail.From
Reply-To SmtpMail.ReplyTo
Sender SmtpMail.Sender
Return-Path SmtpMail.ReturnPath
  • From

    This property indicates the original email sender. This is what you see as the “FROM” in most mail clients.

  • Reply-To

    This property indicates the reply address. Basically, when the user clicks “reply” in mail client, the Reply-To value should be used as the recpient address of the replied email. If you don’t set this property, the Reply address is same as From address.

  • Sender

    This property indicates the who submit/send the email. When the user received the email, the email client displays: From: “sender address” on behalf of “from address”. If you don’t set this property, the Sender address is same as From address. Sender property is common used by mail listing provider. This property also takes effect to DKIM/DomainKeys signature, if Sender is different with From address, then you should sign DKIM/DomainKeys based on Sender domain instead of From address domain.

  • Return-Path

    This property indicates the delivery notification report address. If you don’t set this property, the Return-Path address is same as From address. This property also takes effect to SPF record, if Return-Path is different with From address, then remote SMTP server checkes SPF record of Return-Path instead of From address.

The following example codes demonstrate how to specify From, Reply-To, Sender and Return-Path in Email. With the following example codes:

  • If the email couldn’t be delivered to recipient, a non-delivery report will be sent to report@emailarchitect.net.
  • If the user received the email, the email client will display: sender@emailarchitect.net on behalf of from@adminsystem.com.
  • If the user click “reply”, the replied email will be sent to reply@adminsystem.com.
oMail.from = "from@adminsystem.com";
oMail.replyTo = new EASendMail.MailAddress( "replyto@@emailarchitect.net" );
oMail.sender = "sender@emailarchitect.net";
oMail.returnPath = "report@emailarchitect.net";

Mail Priority

If you want to set Higher or Lower priority to your email, you can use Priority prority

[JavaScript - Mail Priority - Example]

// Set high priority
oMail.priority = EASendMail.MailPriority.high;

Troubleshooting

When you send email in above simple C# project, if it threw an exception, please have a look at the following tips:

“No Such Host” exception

This error means DNS server cannot resolve SMTP server, you should check if you input correct server address. If your server address is correct, you should check if your DNS server setting is correct.

Common “Networking Connection” Exception

This error means there is a problem with networking connection to SMTP server. You can use Windows built-in Telnet command to detect the networking connection.

Using Telnet to detect networking connection to SMTP server

Note

Notice: in Windows 2008/Windows 8 or later version, Telnet Client is not installed by default, you should enable this command in Control Panel -> Programs and Features -> Turn Windows feature on or off -> have Telnet Client checked.

Under DOS command prompt, input “telnet [serveraddress] [port]”:

telnet mail.emailarchitect.net 25
press enter.

If the networking connection to your SMTP server is good, it should return a message like 220 .... If it returns Could not open connection to ..., that means the networking connection to SMTP server is bad, or outbound 25 port is blocked by anti-virus software, firewall or ISP. Please have a look at the following screenshot:

detect SMTP connection using telnet

SMTP 25, 587, 465 port

25 port is the default SMTP server port to receive email. However, some ISP block outbound 25 port to prevent user to send email directly to other SMTP server. Therefore, many email providers also provide an alternative port 587 to receive email from such users. 465 port is the common port used to receive email over implicit SSL connection. If you use telnet to test 465 port, it doesn’t return the “220…”, because it requires SSL hand shake. But if the connection is ok, telnet returns a flash cursor.

“5xx … IP address block or on black list or bad reputation” Exception

This error means SMTP server blocks your IP address or email content. You can try to set user/password in your codes to do user authentication and try it again. If email client set user authentication, most SMTP servers do not check client source IP address in black list.

“5xx user authenticaton” Exception

TThis error means user authentication is failed, you should check whether you input correct user/password. Password is always case-sensitive.

“5xx relay denied” Exception

For anti-spam policy, most SMTP servers do not accept the email to outbound domain without user authentication. You should set user/password in the codes and try it again.

“5xx Must issue a STARTTLS command first”

This error means SMTP server requires SSL/TLS connection. You should enable SSL/TLS connection like this:

// If your smtp server requires TLS connection, please add this line
oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

“No supported authentication marshal found!”

This error means SMTP server doesn’t support user authentication or it requires user authentication over SSL/TLS connection. You can try to remove user/password in your codes and try it again.

Other error returned by SMTP server

If SMTP server returns an error, it usually returns description about this error. Some descriptions also include a HTTP link, you can go to this linked web page to learn more detail. You can also use the following codes to generate a log file to learn all SMTP session between client and server.

[JavaScript - Using log file to detect SMTP server response - Example]

// add this line here to generate log file
oSmtp.logFileName = "ms-appdata:///local/smtp.txt";
oSmtp.sendMail(oServer, oMail);

Next Section

In this section, I introduced the basic things of sending email in JavaScript with EASendMail. At next section I will introduce how to send email over SSL connection.

Send Email over SSL/TLS in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced the basic things of email sending in JavaScript. In this section, I will introduce the SSL connection.

SSL and TLS Introduction

SSL connection encrypts data between the SMTP component and SMTP server to protects user, password and email content in TCP/IP level. Now this technology is commonly used and many SMTP servers are deployed with SSL such as Gmail, Yahoo and Hotmail. There are two ways to deploy SSL on SMTP server:

  • Explicit SSL (TLS)

    Using STARTTLS command to switch SSL channel on normal SMTP port (25 or 587);

  • Implicit SSL

    Deploying SSL on another port (465 or other port, you may query it from your server administrator

EASendMail SMTP component supports both ways. The connection can be specified by EASendMail.SmtpConnectType enumeration.

TLS 1.2

TLS is the successor of SSL, more and more SMTP servers require TLS 1.2 encryption now.

If your operating system is Windows XP/Vista/Windows 7/Windows 2003/2008/2008 R2/2012/2012 R2, and you got connection error with SSL/TLS connection, you need to enable TLS 1.2 protocol in your operating system like this:

Enable TLS 1.2 on Windows XP/Vista/7/10/Windows 2008/2008 R2/2012

[JavaScript Exmaple - SSL/TLS Setting]

//send email by normal TCP/IP without SSL connection
var oServer = new EASendMail.SmtpServer("localhost 25");
oServer.connectType = EASendMail.SmtpConnectType.connectNormal;

//send email by SSL connection with STARTTLS command switching
var oServer = new EASendMail.SmtpServer("localhost 25");
oServer.connectType = EASendMail.SmtpConnectType.connectSTARTTLS;

//send email by SSL connection with direct SSL.
var oServer = new EASendMail.SmtpServer("localhost 465");
oServer.connectType = EASendMail.SmtpConnectType.connectDirectSSL;

//send email by SSL connection with auto-detect.
//if port is 25, STARTTLS SSL will be used; otherwise direct SSL will be used.

var oServer = new EASendMail.SmtpServer("localhost 465");
oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto

var oServer = new EASendMail.SmtpServer("localhost 25");
oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email over direct SSL on 465 port]

The following example codes demonstrate how to use EASendMail SMTP component to send email with direct SSL connection on 465 port.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using SSL";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // Enable SSL connection on 465 port, please add this line
        oServer.port = 465;
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

[JavaScript - Send email over TLS on 25 or 587 port]

The following example codes demonstrate how to use EASendMail SMTP component to send email with TLS (STARTTLS command) connection on 25 port. To get the full samples of EASendMail, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using TLS";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // Enable TLS connection on 25 port, please add this line
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Next Section

At next section I will introduce how to send email using Gmail account.

Send Email using Gmail in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email over SSL connection. In this section, I will introduce how to use your Gmail account to send email in JavaScript.

Introduction

Gmail SMTP server address is smtp.gmail.com. It requires implicit SSL or explicit SSL (TLS) connection, and you should use your Gmail email address as the user name for ESMTP authentication.

Server Port SSL/TLS
smtp.gmail.com 25, 587 TLS
smtp.gmail.com 465 SSL

Gmail App Password

To help keep your account secure, starting May 30, 2022, ​​Google will no longer support the use of third-party apps or devices which ask you to sign in to your Google Account using only your username and password.

Therefore, you should sign in using App Passwords. An App Password is a 16-digit passcode that gives a less secure app or device permission to access your Google Account. App Passwords can only be used with accounts that have 2-Step Verification turned on. You need to use App Password instead of the user password for user authentication.

Another solution is Gmail OAUH, please see Gmail SMTP OAUTH section.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email using Gmail account over SSL connection on 465 port]

The following example codes demonstrate how to use EASendMail SMTP component to send email using Gmail account.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set Gmail sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("gmailid@gmail.com");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using Gmail.";

        // Gmail SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.gmail.com");

        // User and password for Gmail authentication
        oServer.user = "gmailid@gmail.com";

        // Create app password in Google account
        // https://support.google.com/accounts/answer/185833?hl=en
        oServer.password = "your app password";

        // Enable SS connection on 465 port
        oServer.port = 465;
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

[JavaScript - Send email using Gmail account over TLS connection on 587 port]

The following example codes demonstrate how to use EASendMail SMTP component to send email using Gmail account.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set Gmail sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("gmailid@gmail.com");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using Gmail.";

        // Gmail SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.gmail.com");

        // User and password for Gmail authentication
        oServer.user = "gmailid@gmail.com";

        // Create app password in Google account
        // https://support.google.com/accounts/answer/185833?hl=en
        oServer.password = "your app password";

        // Enable TLS connection on 587 port
        oServer.port = 587;
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Gmail SMTP OAUTH

The Gmail IMAP and SMTP servers have been extended to support authorization via the industry-standard OAuth 2.0 protocol. Using OAUTH protocol, user can do authentication by Gmail Web OAuth instead of inputting user and password directly in application. This way is more secure, but a little bit complex.

Using Gmail SMTP OAUTH

Next Section

At next section I will introduce how to send email with Yahoo account.

Send Email using Yahoo in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email using Gmail account. In this section, I will introduce how to use your Yahoo account to send email in JavaScript.

Introduction

Yahoo SMTP server address is smtp.mail.yahoo.com. It supports both Normal/SSL connection to do user authentication, and you should use your Yahoo email address as the user name for ESMTP authentication. For example: your email is myid@yahoo.com, and then the user name should be myid@yahoo.com.

If you want to use SSL connection with Yahoo SMTP server, you must set the port to 465.

Server Port SSL/TLS
smtp.mail.yahoo.com 25, 587 TLS
smtp.mail.yahoo.com 465 SSL

Important

If you got authentication error, you need to enable Allowing less secure apps in your Yahoo account. Or you can generate App Passwords and use this app password instead of your user password.

Although Yahoo supports OAUTH, but it doesn’t provide mail permission, so OAUTH is not a solution for Yahoo mail.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email using Yahoo account over SSL connection on 465 port]

The following example codes demonstrate how to use EASendMail SMTP component to send email using Yahoo account.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set Yahoo sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("myid@yahoo.com");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using Yahoo.";

        // Yahoo SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.mail.yahoo.com");

        // User and password for Yahoo authentication
        oServer.user = "myid@yahoo.com";
        oServer.password = "testpassword";

        // Enable SSL connection on 465 port, please add this line
        oServer.port = 465;
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

[JavaScript - Send email using Yahoo account over TLS connection on 587 port]

The following example codes demonstrate how to send email using Yahoo account on TLS 587 port.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set Yahoo sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("myid@yahoo.com");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project (TLS)";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using Yahoo.";

        // Yahoo SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.mail.yahoo.com");

        // User and password for Yahoo authentication
        oServer.user = "myid@yahoo.com";
        oServer.password = "testpassword";

        // set 587 port
        oServer.port = 587;
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Next Section

At next section I will introduce how to send email using Hotmail/MSN Live/Office 365 account.

Send Email using Hotmail/MSN Live/Outlook/Office365 in Javascript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email using Yahoo account. In this section, I will introduce how to use your Hotmail/MSN Live/Outlook.com/Office365 account to send email in JavaScript.

Introduction

Hotmail/MSN Live/Outlook.com SMTP server address is smtp.office365.com. It requires TLS connection to do user authentication, and you should use your Hotmail/MSN Live/Outlook.com email address as the user name for ESMTP authentication. For example: your email is liveid@hotmail.com, and then the user name should be liveid@hotmail.com.

Server Port SSL/TLS
smtp.office365.com 25, 587 TLS

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email using Hotmail/MSN Live/Outlook.com account over TLS connection]

The following example codes demonstrate how to use EASendMail SMTP component to send email using Hotmail/MSN Live/Outlook.com account.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set Hotmail/Live/Outlook.com sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("liveid@hotmail.com");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using Hotmail.";

        // Hotmail SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.office365.com");

        // User and password for Hotmail authentication
        oServer.user = "livid@hotmail.com";

        // If you got authentication error, try to create an app password instead of your user password.
        // https://support.microsoft.com/en-us/account-billing/using-app-passwords-with-apps-that-don-t-support-two-step-verification-5896ed9b-4263-e681-128a-a6f2979a7944
        oServer.password = "your password or app password";

        // Enable TLS connection on 25 port
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Hotmail SMTP OAUTH

If your account enabled two-factor authentication, you cannot login your account by normal user authentication, you should use SMTP OAUTH or App Password.

Microsoft Live SMTP servers (Hotmail, Oultook personal account) have been extended to support authorization via the industry-standard OAuth 2.0 protocol. Using OAUTH protocol, user can do authentication by Microsoft Web OAuth instead of inputting user and password directly in application. This way is more secure, but a little bit complex.

Using Microsoft Hotmail SMTP OAUTH

Or you can generate App Passwords and use this app password instead of your user password.

Send Email using Office 365

Office 365 SMTP server uses 587 port and explicit SSL (TLS) connection.

Server Port SSL/TLS
smtp.office365.com 25, 587 (recommended) TLS

App Password and SmtpClientAuthenticationDisabled

If your account enabled two-factor authentication, you cannot login your account by normal user authentication, you should create an App Passwords and use this App Password instead of the user password.

You should also check if authenticated client SMTP submission (SMTP AUTH) is enabled:

Enable or disable authenticated client SMTP submission (SMTP AUTH) in Exchange Online.

[JavaScript - Send email using Office365 account over TLS connection]

The following example codes demonstrate how to use EASendMail SMTP component to send email using Office365 account. To get the full samples of EASendMail, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set office365 sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("myid@mydomain");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using office365.";

        // Office365 SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.office365.com");

        // User and password for office365 authentication
        oServer.user = "myid@mydomain";

        // If you got authentication error, try to create an app password instead of your user password.
        // https://support.microsoft.com/en-us/account-billing/using-app-passwords-with-apps-that-don-t-support-two-step-verification-5896ed9b-4263-e681-128a-a6f2979a7944
        oServer.password = "your password or app password";

        // Enable TLS connection on 587 port
        oServer.port = 587;
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Office365 EWS OAUTH

If your account enabled two-factor authentication, you cannot login your account by normal user authentication, you should use SMTP/EWS OAUTH or App Password.

Microsoft Office365 EWS servers have been extended to support authorization via the industry-standard OAuth 2.0 protocol. Using OAUTH protocol, user can do authentication by Microsoft Web OAuth instead of inputting user and password directly in application. This way is more secure, but a little bit complex.

Using Microsoft Office365 EWS OAUTH

Or you can generate App Passwords and use this app password instead of your user password.

Next Section

At next section I will introduce how to send email with HTML format in JavaScript.

Send HTML Email in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email using Hotmail account. In this section, I will introduce how to compose and send HTML email in JavaScript.

Introduction

If you want to specify the font, color or insert pictures in your email, you should use Html email format instead of Plain text email format.

Note

Remarks: All of samples in this section are based on first section: A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send HTML email]

The following example codes demonstrate how to use EASendMail SMTP component to send email in HTML body format.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set Html body
        oMail.htmlBody = "<font size=5>This is</font> <font color=red><b>a test</b></font>";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

After you received the email by your email client, the body text is like this:

JavaScript HTML Email - Windows Store App

Import Html to email directly

Of course, you don’t have to write the HTML source body text in your application manually. You can build a html file with HTML tools and use ImportHtmlBodyAsync method to import the html file directly.

You can also refer to the Samples_Windows8 in EASendMail Installer. Those samples demonstrate how to build a HTML email editor and send HTML email with attachment or embedded images/pictures.

JavaScript html editor

Next Section

At next section I will introduce how to attach file attachment to email message.

Send Email with Attachment in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send HTML email. In this section, I will introduce how to add attachment to email in JavaScript.

Introduction

To send an email with file attachment, we need to use AddAttachmentAsync method. This method can attach a file to the email message from local disk or a remote URL.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Add attachment from local disk or remote URL]

The following example codes demonstrate how to use EASendMail SMTP component to send email with file attachments.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var btn = document.getElementById("btnSend");

        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email with attachment from JavaScript HTML5 project";

        // Set HTML body
        oMail.htmlBody = "<font size=5>This is</font> <font color=red><b>a test</b></font>";

        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();


        // get a file path from PicturesLibrary,
        // to access files in PicturesLibrary, you MUST have "Pictures Library" checked in
        // your project -> Package.appxmanifest -> Capabilities
        Windows.Storage.KnownFolders.picturesLibrary.getFileAsync("test.jpg")
        .then(function (file) {

            var attfile = file.path;
            // if you want to add attachment from remote URL instead of local file.
            // var attfile = "http://www.emailarchitect.net/test.jpg";

            return oMail.addAttachmentAsync(attfile);
        })
        .then(function (oAttachment) {
            // you can change the Attachment name by
            // oAttachment.name = "mytest.jpg";

            btn.disabled = true;
            return oSmtp.sendMailAsync(oServer, oMail);
        })
        .done(function () {

            result = "Email was sent successfully!";
            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        // error handle
        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oMail.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Next Section

At next section I will introduce how to add embedded images/pictures to email message.

Send Email with Embedded Images in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email with file attachment. In this section, I will introduce how to add embedded images to email in JavaScript.

Introduction

To attach an embedded images to email, you should add an attachment to email at first. Then you should assign an unique identifier(contentid) to this attachment. Finally, you need to replace the <img src="your file name" /> to <img src="cid:yourcontentid" />.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Add embedded images to email]

The following example codes demonstrate how to use EASendMail SMTP component to send email with embedded images.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var btn = document.getElementById("btnSend");

        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email with inline image from JavaScript HTML5 project";

        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();


        // get a file path from PicturesLibrary,
        // to access files in PicturesLibrary, you MUST have "Pictures Library" checked in
        // your project -> Package.appxmanifest -> Capabilities
        Windows.Storage.KnownFolders.picturesLibrary.getFileAsync("test.jpg")
        .then(function (file) {

            var attfile = file.path;
            // if you want to add attachment from remote URL instead of local file.
            // var attfile = "http://www.emailarchitect.net/test.jpg";

            return oMail.addAttachmentAsync(attfile);
        })
        .then(function (oAttachment) {
            // you can change the Attachment name by
            // oAttachment.name = "mytest.jpg";

            //Specifies the attachment as an embedded image
            var contentID = "test001@host";
            oAttachment.contentID = contentID;
            oMail.htmlBody = "<html><body>this is an <img src=\"cid:"
                            + contentID + "\"> embedded picture.</body></html>";

            btn.disabled = true;
            return oSmtp.sendMailAsync(oServer, oMail);
        })
        .done(function () {

            result = "Email was sent successfully!";
            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        // error handle
        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oMail.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

To attach embedded images/pictures, SmtpMail.ImportHtmlBodyAsync and SmtpMail.ImportHtmlAsync methods are strongly recommended. With these methods, you don’t have to specify the ContentID manually. The html source/file html body can be imported to email with embedded pictures automatically.

You can also refer to the Samples_Windows8 in EASendMail Installer. Those samples demonstrate how to build a HTML email editor and send HTML email with attachment or embedded images/pictures.

JavaScript html editor

Next Section

At next section I will introduce how to send email with event handler.

Send Email with Event Handler in Javascript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email with embedded image. In this section, I will introduce how to send email with event handler in JavaScript.

Introduction

In previous examples, after SendMailAsync method is invoked, if you want to know the progress of the email sending, you should use Event Handler. The following sample codes demonstrate how to use Event Handler to monitor the progress of email sending.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email with event handler]

The following example codes demonstrate how to use EASendMail SMTP component to send email with event handler.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App, do not reply";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        // EASendMail Events Handlers
        oSmtp.addEventListener("connected",
            (function (e) {
                var status = e.status;
                // status = "Connected";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("authorized",
            (function (e) {
                var status = e.status;
                // status = "Authorized";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("securing",
            (function (e) {
                var status = e.status;
                // status = "Securing ...";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("sendingdatastream",
            (function (e) {
                var status = "Data " + e.sent + "/" + e.total + " sent";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;

            }));

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Next Section

At next section I will introduce how to send email in asynchronous mode.

Send Email Asynchronously in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to use event handler to monitor the progress. In this section, I will introduce how to send email asynchronously in JavaScript.

Introduction

In Windows Store App, all File or .NET IO operations are based on asynchronouse mode. You should use await keyword to wait the operation is finished. With asynchronouse mode, you can do other things in your codes while the email is sending. Please have a look at the following example codes:

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email in asynchronous mode]

The following example codes demonstrate how to use EASendMail SMTP component to send email in asynchronous mode.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App, do not reply";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        // EASendMail Events Handlers
        oSmtp.addEventListener("connected",
            (function (e) {
                var status = e.status;
                // status = "Connected";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("authorized",
            (function (e) {
                var status = e.status;
                // status = "Authorized";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("securing",
            (function (e) {
                var status = e.status;
                // status = "Securing ...";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("sendingdatastream",
            (function (e) {
                var status = "Data " + e.sent + "/" + e.total + " sent";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;

            }));

        var btn = document.getElementById("btnSend");
        btn.disabled = true;

        // get a asynchronous promise object
        var promise = oSmtp.sendMailAsync(oServer, oMail);

        // do some thing

        promise.done(function (e) {
            result = "Email was sent successfully!";

            //// Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            //// because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Cancel Asynchronous Operation

In above codes, SendMailAsync method returns a IAsyncAction object, we can also use this object to cancel current email sending. Please have a look at the following codes:

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);

        // add Cancel event handler
        btn = document.getElementById("btnCancel");
        btn.addEventListener("click", (function (e) {
            this.disabled = true;
            if (asynCancel != null) {// cancel operation
                asynCancel.cancel();
            }
        }), false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App, do not reply";

        // Your SMTP server address
        var oServer = new EASendMail.SmtpServer("smtp.emailarchitect.net");

        // User and password for ESMTP authentication
        oServer.user = "test@emailarchitect.net";
        oServer.password = "testpassword";

        // If your SMTP server requires TLS connection on 25 port, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        // If your SMTP server requires SSL connection on 465 port, please add this line
        // oServer.port = 465;
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        // EASendMail Events Handlers
        oSmtp.addEventListener("connected",
            (function (e) {
                var status = e.status;
                // status = "Connected";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("authorized",
            (function (e) {
                var status = e.status;
                // status = "Authorized";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("securing",
            (function (e) {
                var status = e.status;
                // status = "Securing ...";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;
            }));

        oSmtp.addEventListener("sendingdatastream",
            (function (e) {
                var status = "Data " + e.sent + "/" + e.total + " sent";

                var textStatus = document.getElementById("textStatus");
                textStatus.innerText = status;

            }));

        asynCancel = null;
        document.getElementById("btnSend").disabled = true;
        document.getElementById("btnCancel").disabled = false;

        // get asynchronous cancellation object
        asynCancel =  oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();

            document.getElementById("btnSend").disabled = false;
            document.getElementById("btnCancel").disabled = true;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();

            document.getElementById("btnSend").disabled = false;
            document.getElementById("btnCancel").disabled = true;
        });
    }
})();

Next Section

At next section I will introduce how to send email using Exchange Web Service - EWS.

Send Email using Exchange Web Service - EWS in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email asynchronously. In this section, I will introduce how to send email with Exchange Web Service - EWS.

Introduction

Exchange Web Services (EWS), an alternative to the MAPI protocol, is a documented SOAP based protocol introduced with Exchange Server 2007. We can use HTTP or HTTPS protocol to send email with Exchange Web Services (EWS) instead of SMTP protocol.

  • SMTP protocol

    Standard SMTP protocol based on TCP/IP, all email servers support this protocol, Exchange Server also supports SMTP protocol. Using SMTP protocol is always recommended.

  • Exchange WebDAV

    Exchange WebDAV is a set of methods based on the HTTP protocol to manage users, messages in Microsoft Exchange Server. We can use HTTP or HTTP/HTTPS protocol to send email with Exchange WebDAV instead of SMTP protocol. But since Exchange 2007, WebDAV service is disabled by default, so I only suggest that you use WebDAV protocol in Exchange 2000/2003.

  • Exchange Web Service (EWS)

    Exchange Web Services (EWS), an alternative to the MAPI protocol, is a documented SOAP based protocol introduced with Exchange Server 2007. We can use HTTP or HTTPS protocol to send email with Exchange Web Services (EWS) instead of SMTP protocol. I only suggest that you use EWS protocol in Exchange 2007/2010/2013/2016 or later version. Office365 also supports EWS very well.

With EASendMail SMTP Component, you do not have to build your EWS SOAP XML request and parse the response. It wraps the SOAP XML and HTTP request automatically. You just need to change the SmtpServer.Protocol property, and then EASendMail uses Web Service protocol to send email. Your server SHOULD be Exchange 2007 or later version; otherwise you cannot use Exchange Web Service protocol.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email with Exchange Web Service - EWS]

The following example codes demonstrate how to use EASendMail SMTP component to send email with Exchange Web Service - EWS.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using EWS.";

        // Your Exchange server address
        var oServer = new EASendMail.SmtpServer("exch.emailarchitect.net");

        // Exchange Web Service authentication
        oServer.user = "emailarchitect.net\\test";
        oServer.password = "testpassword";

        // using Exchange Web Service protocol - Exchange Server 2007/2010/2013
        oServer.protocol = EASendMail.ServerProtocol.exchangeEWS;

        // Exchange EWS Service requires SSL connection by default
        oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;
        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

Next Section

At next section I will introduce how to send email with Exchange WebDAV.

Send Email using Exchange WebDAV in JavaScript from Windows Store Apps - HTML5 - UWP

In previous section, I introduced how to send email using Exchange Web Service - EWS. In this section, I will introduce how to send email using Exchange WebDAV.

Exchange WebDAV is a set of methods based on the HTTP protocol to manage users, messages in Microsoft Exchange Server. We can use HTTP or HTTPS protocol to send email with Exchange WebDAV instead of SMTP protocol.

  • SMTP protocol

    Standard SMTP protocol based on TCP/IP, all email servers support this protocol, Exchange Server also supports SMTP protocol. Using SMTP protocol is always recommended.

  • Exchange WebDAV

    Exchange WebDAV is a set of methods based on the HTTP protocol to manage users, messages in Microsoft Exchange Server. We can use HTTP or HTTP/HTTPS protocol to send email with Exchange WebDAV instead of SMTP protocol. But since Exchange 2007, WebDAV service is disabled by default, so I only suggest that you use WebDAV protocol in Exchange 2000/2003.

  • Exchange Web Service (EWS)

    Exchange Web Services (EWS), an alternative to the MAPI protocol, is a documented SOAP based protocol introduced with Exchange Server 2007. We can use HTTP or HTTPS protocol to send email with Exchange Web Services (EWS) instead of SMTP protocol. I only suggest that you use EWS protocol in Exchange 2007/2010/2013/2016 or later version. Office365 also supports EWS very well.

With EASendMail SMTP Component, you do not have to build your WebDAV request and parse the response. It wraps the WebDAV HTTP request automatically. You just need to change the SmtpServer.Protocol property, and then EASendMail uses WebDAV protocol to send email. Your server SHOULD be Exchange 2000 or 2003 version; otherwise you cannot use Exchange WebDAV protocol. Although Exchange 2007 still supports WebDAV protocol, but the default status of WebDAV in Exchange 2007 is disabled, so you should use Exchange Web Service protocol with Exchange 2007 or later version.

Note

Remarks: All of samples in this section are based on first section: Send email in A simple JavaScript HTML5 Windows Store App project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

[JavaScript - Send email with Exchange WebDAV]

The following example codes demonstrate how to use EASendMail SMTP component to send email with Exchange WebDAV.

Note

To get the full sample projects, please refer to Samples section.

(function () {
    "use strict";
    var appViewState = Windows.UI.ViewManagement.ApplicationViewState;
    var ui = WinJS.UI;
    var htmlinited = false;
    var editor;
    var asynCancel = null;
    var m_atts = new Array();
    ui.Pages.define("/default.html", {
        // This function is called whenever a user navigates to this page. It
        // populates the page elements with the app's data.
        ready: function (element, options) {
            init_gui();
        },

        unload: function () {

        }

    });

    function init_gui() {

        // add OnClick event handler
        var btn = document.getElementById("btnSend");
        btn.addEventListener("click", send_email, false);
    }

    function send_email() {
        var result = "";

        var oMail = new EASendMail.SmtpMail("TryIt");

        // Set sender email address, please change it to yours
        oMail.from = new EASendMail.MailAddress("test@emailarchitect.net");

        // Add recipient email address, please change it to yours
        oMail.to.add(new EASendMail.MailAddress("support@emailarchitect.net"));

        // Set email subject
        oMail.subject = "test email from JavaScript HTML5 project";

        // Set email body
        oMail.textBody = "this is a test email sent from Windows Store App using WebDAV.";

        // Your Exchange server address
        var oServer = new EASendMail.SmtpServer("exch.emailarchitect.net");

        // using Exchange WebDAV protocol
        oServer.protocol = EASendMail.ServerProtocol.exchangeWebDav

        // Exchange WebDAV authentication
        oServer.user = "emailarchitect.net\\test";
        oServer.password = "testpassword";

        // set drafts folder name
        oServe.drafts = "drafts";

        // If your Exchange WebDAV server requires SSL connection, please add this line
        // oServer.connectType = EASendMail.SmtpConnectType.connectSSLAuto;

        var oSmtp = new EASendMail.SmtpClient();

        var btn = document.getElementById("btnSend");
        btn.disabled = true;
        oSmtp.sendMailAsync(oServer, oMail).then(function (e) {
            result = "Email was sent successfully!";

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Success")).showAsync();
            btn.disabled = false;
        },

        function (e) {
            // because javascript exception only gives the stack trace messages, but it is not
            // real description of exception, so we give a property lastErrorMessage for javascript.
            if (oSmtp.lastErrorMessage != "") {
                result = oSmtp.lastErrorMessage;
            }
            else {
                result = e.message;
            }
            oSmtp.close();

            // Display Result by Diaglog box
            (new Windows.UI.Popups.MessageDialog(result, "Error Information")).showAsync();
            btn.disabled = false;
        });
    }
})();

See Also

Total sample projects in EASendMail SMTP Component installation package.

Javascript - UWP - SMTP, SSL, TLS, Embedded Images, EWS - Sample Projects

After you downloaded the EASendMail SMTP Component Installer and install it on your machine, there are many samples in the installation path.

All the samples locate at EASendMail Installation Folder. Most of sample projects demonstrate file attachment, embedded images, S/MIME, user authentication, SSL/TLS connection and Dns lookup.

.NET Framework Sample Projects

ASP.NET Form

C#, VB, JScript\Simple Send a simple email from ASP.NET form.
C#, VB, JScript\SimpleQueue Send email from ASP.NET to EASendMail Service.
C#, VB\Oauth Send email using Gmail and Office 365 OAUTH/XOAUTH2.
C#, VB, JScript\AdvancedQueueWithDatabase Send email from ASP.NET to EASendMail Service, background service will select recipients from database and write result back to database.

ASP.NET MVC

C#, VB\WebProject1\SimpleController Send a simple email from ASP.NET MVC by Form Post/Ajax Post.
C#, VB\WebProject1\OauthController Send email using Gmail and Office 365 OAUTH/XOAUTH2.
C#, VB\WebProject1\MassController Send mass emails using background thread pool.
C#, VB\WebProject1\DbRecipientsController Send mass emails using background thread pool, select recipients from database and write result back to database.

.NET Desktop (Windows Form)

C#, VB\Simple Send a simple email from .NET Windows Form.
C#, VB\HtmlMail Send text/html email using Web Browser Control Editor
C#, VB\HtmlMailWebView2 Send text/html email using WebView2 Control Editor
C#, VB\Mass Send mass emails using thread pool.
C#, VB\Oauth Send email using Gmail and Office365/Hotmail OAUTH/XOAUTH2.

Windows CE/PocketPC

C#, VB\pocketpc.mobile Send a simple email from .NET Compact Framework.

ActiveX Object Sample Projects

ASP Classic

VBScript, JScript\Simple Send a simple email from ASP Classic.
VBScript, JScript\SimpleQueue Send email from ASP Classic to EASendMail Service.
VBScript\Oauth Send email using Gmail and Office 365 OAUTH/XOAUTH2.
VBScript, JScript\AdvancedQueueWithDatabase Send email from ASP Classic to EASendMail Service, background service will select recipients from database and write result back to database.

Delphi

Simple Send a simple email from Delphi 7.
HtmlMail Send text/html email using Web Browser Control Editor
Mass Send mass emails using thread pool.
Oauth Send email using Gmail/Office365/Hotmail OAUTH/XOAUTH2.

MS SQL Server

SQL Send email from MS SQL Server stored procedure.

Script

VBScript/JScript/WScript Send a simple email from VBScript/JScript/WScript.

VB6

Simple Send a simple email from VB 6.0.
HtmlMail Send text/html email using Web Browser Control Editor
Mass Send mass emails using thread pool.
Oauth Send email using Gmail/Office365/Hotmail OAUTH/XOAUTH2.

VC++

Simple Send a simple email from VC++.
HtmlMail Send text/html email using Web Browser Control Editor
Mass Send mass emails using thread pool.
Oauth Send email using Gmail/Office365/Hotmail OAUTH/XOAUTH2.

Free Email Support

Not enough? Please contact our technical support team.

Support@EmailArchitect.NET

Remarks

We usually reply emails in 24hours. The reason for getting no response is likely that your smtp server bounced our reply. In this case, please try to use another email address to contact us. Your Gmail, Hotmail email account is recommended.

Appendix

Comments

If you have any comments or questions about above example codes, please click here to add your comments.