We are having a problem with delivering mail to Comcast. This just stated three days ago. We are wondering if this is the problem. Our MX record and our PTR record points to mail.rgrayclamps.com. Yet if you look at the haeader on our emails that are sent, it looks like this:
Received: from rgrbgmail.rgrayclamps.com (mail.rgrayclamps.com [12.164.177.226])
The name of our mail server is rgrbgmail.
Should the MX record and the PTR record be changed to this. Comcast is the only place rejecting our mail. It has been set up this way for at least four years because it was set up before I started here. Comcast just started rejecting our mail 3 days ago.
Our mail server is Domino
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