From: "Tim Johnson" <tim@akwebsoft.com>
To: support@drupal.org
Sent: Wednesday, December 11, 2013 4:18:29 PM
Subject: Re: [support] Unable to send e-mail. Contact the site administrator if the problem persists

Hi TIm,

Now create a file info.php right next to mail.php. Paste this:

<?php phpinfo(); ?>

Compare the two sites. See if you can find a difference that explains your symptoms.

Chris.