SMTP mail service not working

Question

I'm trying to send email thru "smtpmail.send" but the message remains in queue , doesnt go to the specified email address, MailMessage omm = new MailMessage(); omm.From = "[email protected]"; omm.To = "[email protected]"; omm.Subject="Test Mail"; omm.Body="Test Mail"; SmtpMail.SmtpServer = "servername"; SmtpMail.Send(omm); "servername", is the server name , where i've to send mail Please help me Thanx