//simple email

MailMessage mail = new MailMessage();

mail.To = "me@mycompany.com";

mail.From = "you@yourcompany.com";

mail.Subject = "this is a test email.";

mail.Body = "this is my test email body";

SmtpMail.SmtpServer = "localhost"; //your real server goes here

SmtpMail.Send( mail );