Reverse DNS does not match SMTP Banner

Posted by Bastien974 on Server Fault See other posts from Server Fault or by Bastien974
Published on 2010-05-07T14:45:15Z Indexed on 2010/05/07 14:48 UTC
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exchange-2007

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smtp

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banner

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sonicwall

Hi all,

I had this Warning with mxtoolbox. I know that it's not necessarily a big problem, but since we are having lots of issue with email delivery, I want to check everything.

I have a Exchange server 07 + Sonicwall.

My FQDN is office.mydomain.ca for send/receive connectors. When I try : telnet office.mydomain.ca 25 --> 220 MYSERVER.mydomain.local Microsoft ESMTP MAIL Service ready at Fri, 7 May 2010 10:34:36 -0400

I can change my SMTP Banner in the Sonicwall, but I don't know what to write, if there is a specific syntax or what can be the consequence if it doesn't work.

Thanks for your help.

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