[rt-users] Incorrect Return-Path in Outgoing Email

[Greg White]

On Fri May 05/10/02, 2002 at 11:06:43AM -0400, Casey McCarthy wrote:
> Hi all, first of all I would like to say that RT is a great product, we 
> just upgraded from 1.0 to 2.0 and it works wonderfully. Thanks to all those 
> that worked on it.
> 
> I have only one problem remaining. All of our e-mails go through a server 
> named monk.int.uncommongoods.com and get forwarded to 
> sandman.int.uncommongoods.com (the server that RT runs on). Both use Qmail 
> as the MTA. The problem is that the email is sent out with a return-path of 
> "sandman.int.uncommongoods.com" instead of "queuename at uncommongoods.com" 
> where queuename is the actual queuename. This causes a lot of emails sent 
> out to bounce, since other MTAs won't except messages with return-paths 
> from the non-public domain (sandman.int.uncommongoods.com). How do i change 
> that to a public domain (uncommongoods.com). Below is the bounced message 
> (I xxx'd out the actual e-mail address).
> Thanks so much in advance to whoever can help me!
> 
> Hi. This is the qmail-send program at sandman.int.uncommongoods.com.
> I'm afraid I wasn't able to deliver your message to the following addresses.
> This is a permanent error; I've given up. Sorry it didn't work out.
> <xxx at xxx.com>:
> Connected to 212.114.202.114 but sender was rejected.
> Remote host said: 501 5.1.8 <root at sandman.int.uncommongoods.com>... Domain 
> of sender address root at sandman.int.uncommongoods.com does not exist

This is very much a qmail question, rather than an RT question, but
since I know qmail much better than I know RT internals, I'm happy to
try to help. ;)

Solution 1. Hax0r RT's config file to use '-f'. Untested as shown below,
but should function. 

$MailCommand = 'sendmailpipe';
$SendmailArguments="-f'thisaddress at thishost.example.com' -oi";
$SendmailPath = "/var/qmail/bin/sendmail";

Watch out for Perl re-interpreting the '@' -- you may need to escape it. 

Solution 2. Hax0r qmail so that outbound mail defaults to the host you
want. In most qmail installations, this simply requires a lie in
/var/qmail/control/me -- i.e., echo "thisisthevalidhost.example.com" >
/var/qmail/control/me". You could also do some serious trickery with the
qmail environment variables, but if you only use this host for RT, the
'me' hack is probably the cleanest.  

My opinion of mail hosts that reject email based on the resolvability of
the domain in MAIL FROM: is best left for another day. :)

-- 
Greg White