We have a company-wide mailing list that aggregates all its messages in one IMAP/POP3 mailbox. Now we would like to make the contents of this mailbox browsable as an internal website. The goal is to be able to refer back to some older discussion without resending all the messages it consisted of.
Also, we are kind of limited by our hosting service, which only allows Perl, Python and PHP, but no compiled programs or CPAN modules. Not even the PHP IMAP module.
I am thinking of something like the system used at cocoabuilder.com.