Yeni ASP.NET v2 SMTP Class ini kullanarak email gönderme örnegi.Eger lokal bir mail server üzerinde çalışıyorsanız, SMTPServer ayar satırlarını silebilirsiniz:

using System.Net.Mail;
...
protected void Button1_Click(object sender, EventArgs e)
{
string SMTPServer = "mail.server.asp"; // mail server address
string fromAddress = "asp@asp.net";
string fromName = "Kerem Kosaner";
string toAddress = "asp@asp.com";
string toName = "Kerem Kosaner";
string msgSubject = "E-Mail";string msgBody = "Hello";

SmtpClient client = new SmtpClient(SMTPServer);
client.Credentials= new System.Net.NetworkCredential("asp@asp.net", "password");
MailAddress from = new MailAddress(fromAddress, fromName);
MailAddress to = new MailAddress(toAddress, toName);
MailMessage message = new MailMessage(from, to);

message.Subject = msgSubject;message.Body = msgBody;
client.Send(message);
}