[rt-users] Perl upgrade Broke my RT!

[Rich West]

We upgraded a couple of perl libraries due to some requirements from 
another application (relaydelay), and, while things worked through the 
night, this morning it was discovered that our RT installation was no 
longer displaying pages!

Hence, we get a zero sized reply, and emails to RT fail.

In a panic, we upgraded to 3.4.2 and the results were the same. :(  I 
did notice the new standalone_httpd, which prompted for a quick test.  
Viola!  The site was accessible and functional!  Great.

Then, I saw a number of messages on STDOUT similar to the following:
[Thu Jul 21 17:42:18 2005] [crit]: 
<rt-3.4.2-15930-185295-6.7.1573970583762 at oursite.org>Could not send 
mail. (/var/www/html/oursite.org/rt3/lib/RT/Action/SendEmail.pm:280)

Ack!  A quick check showed that RT was unable to send email.

Anyone have any ideas on how to debug this?  I'm in a bit of a panic and 
at a loss as to how to pull more information out of RT to determine WHY 
it cannot send email.

Thanks!
-Rich