MailDetective is a monitoring tool to report on inbound and outbound email flow in corporate networks. Supports Microsoft Exchange, MDaemon, Kerio Mail Server, QMail, SendMail and many other servers.

Eclarsys PopGrabber retrieves Emails from POP3 accounts and forwards them to an SMTP Server. Completely free 3 account version available for download! Works a a Windows service. Small .Net based program.

Filter Junk E-Mail Spam, Ads, Pop Ups advertising, Viruses, Tojans & Spyware. Works with POP3 & IMAP. This FREE tool uses intelligent filtering of annoying Popup ads, e-mail spam, Spyware, Adware, Trojans, Viruses, Spyware Cookies and much much more

All email messages for your domain are forwarded to any email address of your choice. This service is usefull when you have many email addresses for your domain but want it sent to one email address

MERCUR is a versatile communication platform for MS Windows. Well known standard protocols, like SMTP, POP3, IMAP4 or HTTP provide the basis for world wide communication. It's easy to handle and compatible with the frequently used messaging products

Ocean Mail Server is a secure, feature rich mail server with support for SMTP, POP3, IMAP4, cusomizable WebMail, web based remote administration, SSL, SPAM protection, antivirus, content filtering, LDAP, POP3 retrievals, ODBC and many other features.