Send a Simple HTML Email

Demonstrates how to send a simple HTML email (i.e. with no images, style sheets, etc.).

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) {
    textBox1.Text += mailman.LastErrorText + "\r\n";
    return;
}

//  Set the SMTP server.
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.SetHtmlBody("<html><body><p>This is <b>bold text</b>, this is a <a href=\"http://www.chilkatsoft.com/\">hyperlink</a></p></body></html>");
email.From = "Chilkat Support <support@chilkatsoft.com>";
email.AddTo("Chilkat Admin","admin@chilkatsoft.com");

//  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) {
    MessageBox.Show(mailman.LastErrorText);
    return;
}

//  Some SMTP servers do not actually send the email until
//  the connection is closed.  In these cases, it is necessary to
//  call CloseSmtpConnection for the mail to be  sent.
//  Most SMTP servers send the email immediately, and it is
//  not required to close the connection.  We'll close it here
//  for the example:
success = mailman.CloseSmtpConnection();
if (success != true) {
    MessageBox.Show("Connection to SMTP server not closed cleanly.");
}

MessageBox.Show("Mail Sent!");