Problem sending email from bugzilla

Question

I have bugzilla 4.2.5 running on Ubuntu using postfix. Email from bugzilla is sent from bugzilla-daemon@myhost.mydomain.com. (The real name is altered). The email is sent through Exchange server. Up until recently everything worked perfectly. A few days back mail stopped being delivered. Mailq on bugzilla shows "(host exchange.mydomain.com[xxx.xxx.xxx.xxx] said: 452 4.3.1 Insufficient system resources (in reply to MAIL FROM command))".

Restart of the Transport service and even rebooting exchange didn't help. Mailq -q, postfix -f didn't help. I did figured out, however, that when mail gets to exchange as bugzilla-daemon@mydomain.com it is accepted.

Can somebody suggest what needs to be done either on bugzilla or on exchange in order to fix it?

Answer 1

Does this mean that "myhost" is part of the problem because without it mails get accepted or did you just forget to add "myhost" this time and mails are always accepted? In the first case you IT should have a
look for some host specific rules.

From what I've found on Google this error is clearly something that need to be solved in your Exchange.

http://technology.bauzas.com/microsoft/servers/exchange/exchange-2010/how-to-fix-error-452-4-3-1-insufficient-system-resources-on-exchange-server-2007-or-2010/

You could try to configure SMTP in Bugzilla and see what happens.

Comments

Simply have a look at Administration/Parameters/Email at the smtp-options, shoudl be self explaining. There's a mailfrom, too, where you could try to configure a complete mail address without a
host part and see if postfix passes this one through. Default is to set bugzilla-deamon and let "whoever" add the domain part, I think, in your case with the host.