Processing bounce emails
<p>Say I am sending 1000s of emails using any service provider. Is there any way to know which are the email could not delivered, may be because of wrong email id? </p>

<p>Say I sent an email using gmail service provider to "rohit1234@gmail.com", and say id like "rohit1234@gmail.com" do not exists. So this will not be delivered. How can I know from the service provider that this email did not delivered because of  any reason?</p>
