Features of i-Net Multi User Email Script, Advanced Spam Filtering, RBL Blacklisting, Completely MIME compatible, Contact List Members Filter Proof, Multiple Skins, Limit Users Outgoing Mail (Depending on User Level) 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, Fully functional calendar and scheduler, Unlimited User Folders, Folder Filtering (Incoming mail directed to specific folders), Email notifications of new mail, MySQL backend, Backup, Powerful Admin Panel, Ban IP, Advanced User Editing, Account Suspensions, User Address Book, i-Net Talk and many more features.