Up to this point you have been setting up how your website will receive emails and turn them into content and comments. Now we're going to turn to how that content and associated comments are distributed to subscribers. The main modules you will use are Messaging and Notifications, and their subsidiary modules.
If you use PHPMailer, rather than Drupal Mail to send messages you must fix a bug in the messaging_phpmailer.module file to ensure that the reply-to address is set properly in outgoing. Find the following code:
if (!empty($replyto['name']) && !empty($replyto['email'])) {
$mail->AddReplyTo($replyto['email'], $replyto['name']);
}
Replace it with:
if(!empty($message['headers']['Reply-To'])) {
$mail->AddReplyTo($message['headers']['Reply-To']);
}