E-mail Handling with Perl
Perl provides many facilities for handling E-mail (e.g: sending, receiving, filtering, processing) available from the CPAN (Comprehensive Perl Archive Network). This is a summary of the recommended ones.
The Perl Email Project
A project to create usable modules for handling E-mails in Perl. The page is currently only a placeholder, but you can find the modules using a CPAN search for "Email". The Perl Email Project modules tend to be simple and easy to use.
Mail-Box
An E-mail handling distribution for Perl 5 with a comprehensive API. Very large and not very fast, and can be intimidating.