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(C#) Send High Priority Email (SMTP, X-Priority header)

Demonstrates how to send high-priorty email (or lower priority email) by setting the X-Priority header field.

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//  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 = mailman.UnlockComponent("30-day trial");
if (success != true) {
    Console.WriteLine(mailman.LastErrorText);
    return;
}

//  Set the SMTP server (obviously, use your SMTP server, not chilkatsoft.com)
mailman.SmtpHost = "smtp.chilkatsoft.com";

//  Set the SMTP login/password (if required)
mailman.SmtpUsername = "myUsername";
mailman.SmtpPassword = "myPassword";

//  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>";
success = email.AddTo("Chilkat Admin","admin@chilkatsoft.com");
//  To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

//  To send high-priority email,
//  add the X-Priority header field with the value "1"
//  to indicate highest-priority.
//  A value of "3" is normal, which is the same as not setting
//  the X-Priority header at all, and "5" is the lowest.
//  "2" and "4" are in-betweens.

//  Microsoft Outlook might add the following headers when
//  sending high-priority email.

//  X-Priority: 1 (Highest)
//  X-MSMail-Priority: High
//  Importance: High

//  The X-Priority header alone is enough to make the email high-priority.

email.AddHeaderField("X-Priority","1");

//  Call SendEmail to connect to the SMTP server and send.
//  The connection (i.e. session) to the SMTP server remains
//  open so that subsequent SendEmail calls may use the
//  same connection.
success = mailman.SendEmail(email);
if (success != true) {
    Console.WriteLine(mailman.LastErrorText);
    return;
}

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

Console.WriteLine("Mail Sent!");

 

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