Mail relay question

Need help? Ask here.

Moderator: Moderators

Post Reply
SAK917
Posts: 5
Joined: Sun Aug 28, 2005 8:03 pm

Mail relay question

Post by SAK917 »

I have setup secondary mail through your service for our domain pyxisrc.com. We have recently received notices from several senders that they are getting bounced email messages along the lines of the following:

*** Start Error Message ***

This is the Postfix program at host mail.rollernet.us.

I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.

For further assistance, please send email to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The Postfix program

<Jim@PyxisRC.com>: mail for PyxisRC.com loops back to myself

*** End Error Message ***

Looking in the outgoing mail logs at RollerNet, I see entries like:

Server: mail2
Recipient: jim@pyxisrc.com
Relay: none
Response: bounced (mail for pyxisrc.com loops back to myself)

However, there are other emails to that same email address in the log that appear to have been relayed through RollerNet with no problems.

The MX records for domain pyxisrc.com are:

pyxisrc.com MX preference = 10, mail exchanger = ns1.pyxisrc.com
pyxisrc.com MX preference = 15, mail exchanger = mail2.rollernet.us
pyxisrc.com MX preference = 15, mail exchanger = mail.rollernet.us

Any help you can provide in diagnosing this problem will be greatly appreciated.
RollerNetSupport
Site Admin
Posts: 598
Joined: Wed Nov 17, 2004 10:05 pm
Location: Nevada
Contact:

Post by RollerNetSupport »

(Answered via email, but copying the response here for anyone else that happens to have the same problem in the future.)

There's two caching DNS servers on our system; one of them has the following cached for your domain:

Code: Select all

$ dig @cache0.rollernet.us pyxisrc.com mx
;; ANSWER SECTION:
pyxisrc.com.            6668    IN      MX      15 mail.rollernet.us.
pyxisrc.com.            6668    IN      MX      15 mail2.rollernet.us.
The cached entry will expire in a little under two hours, at which point it will fetch the current records. (This is the cause of the "loops back to me" error.)
Technical Support support@rollernet.us
Roller Network LLC
Post Reply