title: How to cancel an outgoing email send via SMTP server?
body: <p>I am using <a href="https://github.com/kailoa/iphone-smtp" rel="nofollow">https://github.com/kailoa/iphone-smtp</a>  code for sending mail via smtp server. I am able to send mail properly. But i have a requirement that when user has pressed a button the mail should not be send. Is there any way through which we can stop sending mail (if the request has already been made).</p>
  
  <p>Thanks in Advance.</p>