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troubleshooting Question

Reverse DNS issue

Avatar of itatahh
itatahh asked on
ExchangeEmail Servers
6 Comments1 Solution1194 ViewsLast Modified:
Finally figured out that our mail to AOL is being blocked due to incorrect reverse DNS config.  Spoke with our ISP yesterday and partially resolved the issue.

Our mail server - 66.76.1.149 - now shows up correctly when using dns dig:
-----------------------------------------------------------------------------------
;; ANSWER SECTION:
149.1.76.66.in-addr.arpa.  3h57m6s IN PTR  mail.athomehealth.org.
-----------------------------------------------------------------------------------

However, our MS Exchange mail server is not named "mail", but "exchange".

Now, at DNSReport.com, I'm getting the error about "mail server host name in greeting",
-----------------------------------------------------------------------------------------------------
mail.athomehealth.org claims to be non-existent host exchange.athomehealth.org:
220 exchange.athomehealth.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830 ready at Tue, 27 Mar 2007 09:55:05 -0500
-----------------------------------------------------------------------------------------------------

Now, we can't change the name of our server (because we have many internal laptop clients pointing to "exchange" as the mail server in Outlook), and yet I don't think it would be correct to have our ISP change the PTR to "exchange" instead of "mail", would it?

I'm sure there's a wise solution out there, but it escapes me at the moment.