2daybiz Multi User Email Script enables you to start your own email website like gmail, yahoo mail, hot mail made in CGI/PERL, tested over linux servers. Its features include advanced spam filtering, RBL blacklisting, completely MIME compatible, contact list members filter proof, multiple skins, limit users outgoing mail sort inbox with several criteria, fully customizable via HTML templates, mod_perl compatible, new mail sounds, WYSIWYG mail interface, multiple tiered premium accounts, premium accounts using paypal & subscriptions, SMTP or send mail, functional calendar and scheduler, unlimited user folders, folder filtering email notifications of new mail, MySQL backend, backup, powerful admin panel, ban IP, advanced user editing, account suspensions, and user address book.