Need reverse DNS checking for email from our servers.

Hi John,

I know you are tracking this issue. Adding to Jira so Joshua can follow the progress.

Mail Delivery Subsystem to webmaster
show details 7:38 AM (2 hours ago) Reply

The original message was received at Mon, 20 Apr 2009 07:35:37 -0700 (PDT)
from prod-app.int.curriki.org [63.241.108.245]

----- The following addresses had permanent fatal errors -----
<knoblla@comcast.net>
(reason: 554 IMTA01.westchester.pa.mail.comcast.net comcast 63.241.108.236 Comcast requires that all mail ser...s not fill that requirement. For more information, refer to: http://help.comcast.net/content/faq/PTR)

----- Transcript of session follows -----
... while talking to mx2.comcast.net.:
<<< 554 IMTA22.emeryville.ca.mail.comcast.net comcast 63.241.108.236 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to: http://help.comcast.net/content/faq/PTR
... while talking to mx1.comcast.net.:
<<< 554 IMTA01.westchester.pa.mail.comcast.net comcast 63.241.108.236 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to: http://help.comcast.net/content/faq/PTR
554 5.0.0 Service unavailable