Send email using smtp.att.yahoo.com with SSL (port 465).

Send email using smtp.att.yahoo.com with SSL (port 465).

Download: Chilkat .NET Assemblies

//  The mailman object is used for sending and receiving email.
Chilkat.MailMan mailman = new Chilkat.MailMan();

//  Any string argument automatically begins the 30-day trial.
bool success;
success = mailman.UnlockComponent("30-day trial");
if (success != true) {
    MessageBox.Show("Component unlock failed");
    return;
}

//  Set the SMTP server.
mailman.SmtpHost = "smtp.att.yahoo.com";

mailman.SmtpUsername = "myUsername@sbcglobal.net";
mailman.SmtpPassword = "myPassword";

mailman.SmtpSsl = true;
mailman.SmtpPort = 465;

//  Create a new email object
Chilkat.Email email = new Chilkat.Email();

email.Subject = "This is a test";
email.Body = "This is a test";
email.From = "Chilkat Support <support@chilkatsoft.com>";
email.AddTo("Chilkat Admin","admin@chilkatsoft.com");

success = mailman.SendEmail(email);
if (success != true) {
    MessageBox.Show(mailman.LastErrorText);
    return;
}

success = mailman.CloseSmtpConnection();
if (success != true) {
    MessageBox.Show("Connection to SMTP server not closed cleanly.");
}

MessageBox.Show("Mail Sent!");