Merak Mail Server Suite 

Multiple awards winner mail server with ultimate features and stability. Provides you with secured Mail services, Web-Mail, Anti-Spam, Anti-Virus, Instant Messaging, GroupWare, FTP, ODBC and load balancing, monitoring and report facilities.
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iNetMail Demo 

iNetMail is a convenient web based solution for online e-mail management. It helps you check and organize any Internet mail account that uses POP3 services through your Web Browser. This is a perfect web tool for any ISP or regular internet user.
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DeepCoder 

DeepCoder is a program to encrypt, decrypt and/or digitally sign e-mails and files using secret keys (passwords) or public keys. It can be used with any e-mail program or wordprocessor program. No plug-ins are required. Very easy to use!
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PEN - Pennock's Email Notifier 

PEN is an easy to use, easy to setup Email Notifier that sits in your SysTray and pops up a small window and/or play a sound when new mail arrives. It supports POP3 (SSL) as well as AOL, Excite, Gmail, Hotmail, Netscape, Lycos, Mail.com, MSN &Yahoo.
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Winmail Mail Server 

Winmail Server is an enterprise class mail server software system offering a robust feature set, including extensive security measures. Winmail Server supports SMTP, POP3, IMAP, Webmail, LDAP, multiple domains, SMTP authentication, spam protection
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MAPInotify: Free HotMail Edition! 

FREE mail checker for FREE mail system - MAPInotify: Free HotMail Edition! is an advanced skinnable 32-bit HotMail-checker utility.
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