[rt-users] (ab)use of --extension with rt-mailgate

Steve Anderson steve.anderson at bipsolutions.com
Thu Aug 19 11:50:15 EDT 2010

We're using an exim filter to take care of this.

All the mail is pulled in through fetchmail, and handed to the local mailserver, for the RT user.
The RT user has an exim filter that checks the header_to: header against a number of addresses, each with its own delivery pipe.

We're doing a few other things with it, like restricting which addresses can create tickets, and running big mails through altermime to strip attachments.

Steve Anderson

-----Original Message-----
From: rt-users-bounces at lists.bestpractical.com [mailto:rt-users-bounces at lists.bestpractical.com] On Behalf Of Carl Vincent
Sent: 19 August 2010 4:42 PM
To: rt-users at lists.bestpractical.com
Subject: [rt-users] (ab)use of --extension with rt-mailgate


I've had a situation for a while where mail sent to several addresses all goes to the same queue, but I'd like to set ownership automatically based on which address it was actually sent to. Also I'd like to keep the address->owner mapping out of RT, ideally in the aliases file where the address->queue mapping is.

When looking to see if I could hack on rt-mailgate to enable this to happen, I found the code for the --extension parameter could put stuff into the X-RT-Mail-Extension header of the message. It only seems to be documented for certain values, but it will allow anything to go into the header.

So I've implemented a solution where my aliases file says:

bob: "|/path/to/rt/bin/rt-mailgate --queue Main --action correspond --url http://rt.example.org/ --extension for-bob"

And an on-create scrip that checks for the header and if it matches /^for-(\w+)/, try and give ownership to the matched value as a username.

Since this isn't a documented use of this feature, I'd like some community feedback. So is it one or more of the below:

a) That's stupid - there's an easier way to do that which is...

b) That's gonna break if you upgrade to a future version (We're currently on 3.8.2)

c) That's a massive security hole

d) That's pretty neat, can you put it up in the wiki?



     Carl Vincent             http://www.netskills.ac.uk/ (URL)
     Systems Manager                       0191 222 5003 (voice)
     Netskills, Newcastle University       0191 222 5001  (fax)
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