Explicitly Connect to the SMTP Server

See more SMTP Examples

Demonstrates the Chilkat MailMan.SmtpConnect method, which explicitly connects to the SMTP server. If SSL/TLS is required by the current property settings, the secure TLS channel is established as part of connecting. This example opens the connection.

Background: SmtpConnect performs just the connect (and TLS handshake) step, without authenticating — useful when you want fine-grained control over the connection lifecycle, or to separate connecting from authenticating (SmtpAuthenticate) for diagnostics. For everyday sending you don't need to call it: SendEmail connects automatically.

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bool success = false;

//  Demonstrates the MailMan.SmtpConnect method, which explicitly connects to the SMTP server.
//  If SSL/TLS is required by the current property settings, the secure channel is established
//  as part of connecting.

Chilkat.MailMan mailman = new Chilkat.MailMan();

//  Configure the SMTP server connection.
mailman.SmtpHost = "smtp.example.com";
mailman.SmtpPort = 465;
mailman.SmtpSsl = true;

//  Explicitly connect to the SMTP server (does not authenticate).

success = mailman.SmtpConnect();
if (success == false) {
    Debug.WriteLine(mailman.LastErrorText);
    return;
}

Debug.WriteLine("Connected to the SMTP server.");