I'm processing mail with the tools listed above and am running into
some problems. I'm sure many people have run into the same exact
problems before so I'm paying a few bucks for someone to do my
legwork.

An example of problems I have seen: my script takes incoming mail and,
in turn, sends email out. I've already run into one case where I've
created an endless loop (duh! had to kill that sucker quick!) and
another where a MS Exchange AutoReply message mistakenly got added to
my database because my script thought it was a user response.

So, can you direct me to any websites, usenet threads, etc. that help
prevent me from reinventing the wheel here? Perl-specific examples
would be best, but general stuff would be OK too. Specificly I'm
looking for info on how to use headers like FROM_DAEMON in a logical
way (concise answers please, don't just point me to a wordy RFC
somewhere...) Any other general advice would be gravy.

If you are curious about the type of functionality I'm building, take
a look at this page: http://www.quicktopic.com/17/H/QeZ6EtsDW3w