HeaderCollection Class

The collection of HeaderItem class.

System.Object
    System.Collections.ArrayList
        EASendMail.HeaderCollection

[Visual Basic]
Public Class HeaderCollection

[C#]
public class HeaderCollection

[C++]
public ref class HeaderCollection

[JScript]
public class HeaderCollection

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Public Constructors

Methods and Properties

Please refer to .NET Framework SDK System.Collections.ArrayList.

Remarks

To learn more detail about HeaderCollection, please refer to SmtpMail.Headers property.

[Visual Basic, C#] To get the full samples of EASendMail, please refer to Samples section.

[VB - Add customized header]

Imports EASendMail

Public Sub SendMail(sender As String,
    toRecipients As String,
    ccRecipients As String,
    subject As String,
    bodyText As String,
    server As String,
    user As String,
    password As String,
    useSsl As Boolean)

    Try
        
        Dim oMail As SmtpMail = New SmtpMail("TryIt")

        ' inserts a auto-submitted header to indicate that
        ' the message was originated by an automatic process, or an automatic
        ' responder, rather than by a human
        oMail.Headers.Insert(0, new HeaderItem( "auto-submitted", "auto-generated"))

        oMail.From = New MailAddress(sender)
        oMail.To = New AddressCollection(toRecipients)
        oMail.Cc = New AddressCollection(ccRecipients)

        oMail.Subject = subject
        ' If bodyText contains html tags, please use 
        ' oMail.HtmlBody = bodyText 
        oMail.TextBody = bodyText

        ' Add attachment 
        ' oMail.AddAttachment("c:\test.gif")

        ' Set server address
        Dim oServer As SmtpServer = New SmtpServer(server)
        If user.Length > 0 And password.Length > 0 Then
            ' Set user/password for ESMTP authentication
            oServer.User = user
            oServer.Password = password
        End If

        ' Most mordern SMTP servers require SSL/TLS connection now.
        ' ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
        oServer.ConnectType = If(useSsl, SmtpConnectType.ConnectSSLAuto, SmtpConnectType.ConnectTryTLS)

        Dim oSmtp As SmtpClient = New SmtpClient()

        ' To generate a log file for SMTP transaction, please use 
        ' oSmtp.LogFileName = "c:\smtp.txt"

        oSmtp.SendMail(oServer, oMail)

        Console.WriteLine("The message has been submitted to server successfully!")
    Catch ex As Exception
        Console.WriteLine("Exception: {0}", ex.Message)
    End Try

End Sub


[C# - Add customized header]

using System;
using System.Collections;
using EASendMail;

public static void SendMail(string sender,
        string toRecipients,
        string ccRecipients,
        string subject,
        string bodyText,
        string server,
        string user,
        string password,
        bool useSsl)
{
    try
    {
        SmtpMail oMail = new SmtpMail("TryIt");
        
        // inserts a auto-submitted header to indicate that
        // the message was originated by an automatic process, or an automatic
        // responder, rather than by a human
        oMail.Headers.Insert(0, new HeaderItem( "auto-submitted", "auto-generated"));

        oMail.From = sender;
        oMail.To = toRecipients;
        oMail.Cc = ccRecipients;

        oMail.Subject = subject;
        // If bodyText contains the html tags, please use
        // oMail.HtmlBody = bodyText; 
        oMail.TextBody = bodyText;
        
        // Add attachment 
        // oMail.AddAttachment("c:\\test.gif");

        // Set server address
        SmtpServer oServer = new SmtpServer(server);
        if (user.Length != 0 && password.Length != 0)
        {
            // Set user/password for ESMTP authentication
            oServer.User = user;
            oServer.Password = password;
        }

        // Most mordern SMTP servers require SSL/TLS connection now.
        // ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
        oServer.ConnectType = (useSsl) ? SmtpConnectType.ConnectSSLAuto : SmtpConnectType.ConnectTryTLS;

        SmtpClient oSmtp = new SmtpClient();
        
        // To generate a log file for SMTP transaction, please use 
        // oSmtp.LogFileName = "c:\\smtp.txt";

        oSmtp.SendMail(oServer, oMail);

        Console.WriteLine("The message has been submitted to server successfully!");
    }
    catch (Exception exp)
    {
        Console.WriteLine("Exception: {0}", exp.Message);
    }
}

See Also

SmtpMail.Headers Property