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Mail rejected for non rDNS

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Mail rejected for non rDNS - 4.Jan.2011 4:21:23 PM   
skhirbash

 

Posts: 6
Joined: 2.Aug.2007
Status: offline
Hi all,

It appears that we are still having some mail issues. The issue is that some mail servers don't identify our mail server with the IP address assigned (rDNS 12.111.111.112) but identify it with IP address 12.111.111.111which is the IP assigned to our gateway.

Since those mail servers, such as aol.com, sbcglobal.net, comcast.net, and others, can't recognize our mail server with IP address: 12.111.111.112 as a mail server but receive mail from IP address: 12.111.111.111, and so they reject messages delivered to them.

My question is: if I were to request our ISP to add another rDNS with 12.111.111.111, pointing to our mail server, would this cause any issues?

Our mail server is registered with Hostway.
MX record is set to mail.abc.com -- IP 12.111.111.112
ISP created PTR (rDNS) with mail.abc.com -- IP 12.111.111.112

Thanks in advance for your assistance.

Best,
sK

< Message edited by skhirbash -- 4.Jan.2011 8:10:44 PM >
Post #: 1

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