Trouble with Comcast... AGAIN!

mchilson

Perch
Can you guys check into this? All the notification emails to comcast users are bouncing with the following error...

Connected to 206.18.177.26 but sender was rejected.
Remote host said: 521-EHLO/HELO from sender 204.14.106.10 does not map to mail2.m****here.biz in DNS 521-sending machine name must be provided as a fully 521-qualified domain via EHLO/HELO command.
521-see section 4.1.1.1 and 4.1.4 of RFC 2821
521 521: Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mailserver does not fill that requirement. For more information, refer to: http://www.comcast.net/help/faq/index.jsp?faq=Email118405

Looks like something is going on with the reverse DNS lookup.

Many thanks!
Mike
 
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