Rebex POP3

POP3, SMTP, MIME, S/MIME libraries for .NET

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Easy-to-use API

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A typical POP3 session goes through the following steps:

Downloading emails using POP3 

The following code downloads all emails: 

// create POP3 client instance
using (var pop3 = new Rebex.Net.Pop3())
{
    // connect to Gmail POP3 server
    pop3.Connect("pop.gmail.com", SslMode.Implicit);

    // authenticate
    pop3.Login(username, password);

    // get message list
    Pop3MessageCollection list = pop3.GetMessageList();

    // print some info
    Console.WriteLine("{0} email(s) found.", list.Count);

    // download all messages
    foreach (Pop3MessageInfo info in list)
    {
        MailMessage mail = pop3.GetMailMessage(info.SequenceNumber);

        // do something with the mail
        // ...
    }

    // disconnect (required to commit delete operations)
    pop3.Disconnect();
}

' create POP3 client instance
Using pop3 = New Rebex.Net.Pop3()
    ' connect to Gmail POP3 server
    pop3.Connect("pop.gmail.com", SslMode.Implicit)

    ' authenticate
    pop3.Login(username, password)

    ' get message list
    Dim list As Pop3MessageCollection = pop3.GetMessageList()

    ' print some info
    Console.WriteLine("{0} email(s) found.", list.Count)

    ' download all messages
    For Each info As Pop3MessageInfo In list

        ' do something with the mail
        ' ...
        Dim mail As MailMessage = pop3.GetMailMessage(info.SequenceNumber)
    Next

    ' disconnect (required to commit delete operations)
    pop3.Disconnect()
End Using

Note: Although implicit SSL mode has been discouraged since 1999 (see RFC 2595) Gmail and some other providers still only supports this mode. Explicit mode should be used instead when available.

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