[rt-users] RT mailgate failing on subject lines with single quotes

[Chris Hardie]

Hi folks.  We recently had a client try to correspond on an existing 
ticket in a queue/config that had been working fine and untouched for 
quite a while.  He got a message back saying "Message could not be 
recorded", and indeed the correspondence did not get attached to the 
ticket.  The error in our HTTP log was:

[Thu Mar 10 22:17:55 2005] [error]: Scrip IsApplicable 69 died. - Can't call method "new" without a package or object reference at /home/rt/lib/RT/Transaction_Overlay.pm line 910.

At the time we were using 3.2.1.  I just upgraded to 3.4.1 and confirmed 
the issue is still present.

After some playing around, I narrowed it down to the presence of single 
quotes in the subject line text.  When the subject line contains them (and 
the message is otherwise empty), the message fails.  When it does not, but 
is otherwise the same - empty, the message goes through and is recorded. 
I haven't tested it with other "weird" characters.

I'm not sure where the bug might be - I'm sure it's possible we have some 
issue with a dependency module on our side - but it seems like an odd and 
scary issue so I thought I'd bring it up.  Any thoughts?

Thanks,
Chris