I used tcpdump and then WireShark to view the capture file. Not all mail servers object to the missing PTR. Apparently comcast does however I was able to send mail to gmail accounts prior to setting my reverse DNS PTR record so your issue may be something else.
Yeah you'll want to make sure your originating IP works w/reverse lookup. -Andrew On 9/20/2011, "Hillel Bilman" <[email protected]> wrote: >Hi, > >I think you may have answered my question on why emails to gmail have been >failing. I get the same symptoms >of 20/09/11 21:18:52 INFO James.Mailet: RemoteDelivery: Attempting delivery >of Mail1316546231564-61-to-gmail.com to host gmail-smtp-in.l.google.com. at >209.85.229.26 for addresses [[email protected]] >20/09/11 21:19:24 INFO James.Mailet: RemoteDelivery: Exception delivering >message (Mail1316546231564-61-to-gmail.com) - [EOF] >20/09/11 21:19:24 INFO James.Mailet: RemoteDelivery: Temporary exception >delivering mail (Mail1316546231564-61-to-gmail.com: >20/09/11 21:19:24 INFO James.Mailet: RemoteDelivery: Storing message >Mail1316546231564-61-to-gmail.com into outgoing after 0 retries > >1. How did you capture the traffic on the Interface? Did you need to use >wireshark? >2. If we force James to bind on one IP and ensure that IP has a reverse DNS >lookup, then when it connects to another mail server it has to use that IP. > >Is this what you did? > >Thanks > >-----Original Message----- >From: [email protected] [mailto:[email protected]] >Sent: 21 September 2011 12:24 AM >To: [email protected] >Subject: logging issue when response=554 > >I got this in my log: > >INFO 17:08:16,852 | james.mailetcontext | Attempting delivery of >Mail1316548949650-5ce6d995-d4aa-48af-8bff-7f236a53e843-to-comcast.net to >host mx1.comcast.net. at 76.96.62.116 from [email protected] for addresses >[[email protected]] INFO 17:08:17,069 | james.mailetcontext | Could not >connect to SMTP >host: 76.96.62.116, port: 25, response: 554 INFO 17:08:17,069 | >james.mailetcontext | Temporary exception delivering mail >(Mail1316548949650-5ce6d995-d4aa-48af-8bff-7f236a53e843-to-comcast.net: >INFO 17:08:17,069 | james.mailetcontext | Storing message >Mail1316548949650-5ce6d995-d4aa-48af-8bff-7f236a53e843-to-comcast.net >into outgoing after 2 retries > >It didn't really tell me much. I captured the traffic on the interface and >found this: > >"554 imta14.westchester.pa.mail.comcast.net comcast 174.48.my.ip 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"; > >It would be good if the log entries contained more of the reject message. > >-Andrew > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [email protected] >For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
