C#

SMTP Connect and Authenticate

Demonstrates how to connect and then authenticate with an SMTP server. C#

bool success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

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

mailman.SmtpHost = "smtp.mail.us-west-2.awsapps.com";
mailman.SmtpSsl = true;
mailman.SmtpPort = 465;

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

mailman.SmtpUsername = "john@example.com";
mailman.SmtpPassword = "the_password";

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

Debug.WriteLine("Authenticated!");

Debug.WriteLine(mailman.SmtpSessionLog);

//  Sample session log:

//  220 smtp.us-west-2.mail.awsapps.com ESMTP Amazon WorkMail SMTP Service
//  EHLO SLICE<CRLF>
//  250-smtp.us-west-2.mail.awsapps.com
//  250-8BITMIME
//  250-AUTH PLAIN LOGIN
//  250 Ok
//  AUTH LOGIN<CRLF>
//  334 VXNlcm5hbWU6
//  am9obkBleGFtcGxlLmNvbQ==<CRLF>
//  334 UGFzc3dvcmQ6
//  {PasswordOrCredentials}
//  235 Authentication successful.