title: How is mail sent without having SMTP service at local Server PC?
body: <p>Today i created a mail sending class in .net where I am using the following dotnet class:</p>
  
  <blockquote>
    <p>System.Web.Mail.SmtpMail.Send(objMsg);</p>
  </blockquote>
  
  <p>I run the exe at a server PC where i checked that an SMTP Service is not installed but i am surprised to see that the mail is successfully sent at specified email address from a server.</p>
  
  <p>Can anyone please explain to me how this happens?</p>