From: Stan Hoeppner (stanhardwarefreak.com)
Date: Mon Nov 23 2009 - 20:28:22 CST

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ML put forth on 11/23/2009 8:14 PM:

> Thank you for the explanation. OK, I can goto Comcast with that. This is what I thought, but I have never had a Comcast circuit before.

Welcome.

> Can I just assign mail.xxxxx.com to all of my 13 IP's that I have with them? That way if I chose to send mail on a server in the future I dont have to deal with comcast at all?

No one here is in a position to architect your DNS solution for you.
For now, I'd have Comcast create a PTR and matching A and MX records for
your main Postfix server IP/domain. You may have them create a generic
PTR for all the other IPs if you wish, such as yourdomain.tld

--
Stan

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