[rt-users] scrips suddenly stop triggering

[Dr John Halewood]

This seems quite strange: one of our RT instances (3.6.3), happily running for 
over 6 months today suddenly stopped processing scrips when new tickets were 
opened. We're only using basic stuff (Auto Take, Auto Authorize etc), but 
they just don't seem to trigger. The log is empty as well. At some points 
when using the web interface RT has logged sending a mail but none appears. 
Any idea what could be wrong? Update to some RT dependancy that's broken 
something? Restated apache and mysql, but didn't seem to make much 
difference. System is CentOS 4 (aka RHEL 4), with addons mostly for RT perl 
modules (mostly compiled by hand).

Regards
John