Managed C++/CLI - Send Email with Attachment

The following Managed C++/CLI example codes demonstrate how to send email with file attachment using SMTP server.

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

Installation

Before you can use the following codes, please download EASendMail SMTP Component and install it on your machine at first. Full sample proejcts are included in this installer.

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 project, the first step is Add reference of EASendMail to your project. Please create or open your project with Visual Studio, then go to menu -> Project -> Add Reference -> .NET -> Browse..., and select EASendMail{version}.dll from your disk, click Open -> OK, the reference of EASendMail will be added to your project, and you can start to use it to send email in your project.

add reference in c#/vb.net/c++/cli/clr

.NET Assembly

Because EASendMail has separate builds for .Net Framework, please refer to the following table and choose the correct dll.

Separate builds of run-time assembly for .Net Framework 1.1, 2.0, 3.5, 4.0, 4.5 and .Net Compact Framework 2.0, 3.5.

File .NET Framework Version
EASendMail.dll Built with .NET Framework 1.1
It requires .NET Framework 1.1, 2.0, 3.5 or later version.
EASendMail20.dll Built with .NET Framework 2.0
It requires .NET Framework 2.0, 3.5 or later version.
EASendMail35.dll Built with .NET Framework 3.5
It requires .NET Framework 3.5 or later version.
EASendMaill40.dll Built with .NET Framework 4.0
It requires .NET Framework 4.0 or later version.
EASendMaill45.dll Built with .NET Framework 4.5
It requires .NET Framework 4.5 or later version.
EASendMailCF20.dll Built with .NET Compact Framework 2.0
It requires .NET Compact Framework 2.0, 3.5 or later version.
EASendMailCF35.dll Built with .NET Compact Framework 3.5
It requires .NET Compact Framework 3.5 or later version.

C++/CLI - Send Email with Attachment - Example

The following example codes demonstrate sending email with attachment. In order to run it correctly, please change SMTP server, user, password, sender, recipient value to yours.

Note

To get full sample projects, please download and install EASendMail on your machine.

#include "stdafx.h"

using namespace System;
using namespace EASendMail;

int main(array<System::String ^> ^args)
{
    SmtpMail ^oMail = gcnew SmtpMail("TryIt");
    SmtpClient ^oSmtp = gcnew SmtpClient();

    // Set sender email address, please change it to yours
    oMail->From = "test@emailarchitect.net";

    // Set recipient email address, please change it to yours
    oMail->To = "support@emailarchitect.net";

    // Set email subject
    oMail->Subject = "test HTML email from Managed C++/CLI with attachment";

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

    // Your SMTP server address
    SmtpServer ^oServer = gcnew SmtpServer("smtp.emailarchitect.net");

    // User and password for ESMTP authentication, if your server doesn't require
    // User authentication, please remove the following codes.
    oServer->User = "test@emailarchitect.net";
    oServer->Password = "testpassword";

    // If your smtp server requires SSL/TLS connection, please add this line
    // oServer->ConnectType = SmtpConnectType::ConnectSSLAuto;

    try
    {
        // Add attachment from local disk
        oMail->AddAttachment("d:\\test.pdf");

        // Add attachment from remote website
        oMail->AddAttachment("http://www.emailarchitect.net/webapp/img/logo.jpg");

        Console::WriteLine("start to send email with attachment ...");
        oSmtp->SendMail(oServer, oMail);
        Console::WriteLine("email was sent successfully!");
    }
    catch (Exception ^ep)
    {
        Console::WriteLine("failed to send email with the following error:");
        Console::WriteLine(ep->Message);
    }

    return 0;
}

Appendix

Comments

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