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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EyeOnSite 

EyeOnSite is a tool that keeps an eye on your servers to see if they are accessible on the net. The services monitored are http, ftp, smtp and pop3. Incorporated are visual and audible alerts and option to launch an application or send an email.
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MouseTrap 

Anti-Spam, Anti-Junk Program using confirmation message to authenticate senders.
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CW Mail Exchange 

Company Works Mail Exchange gives you a full e-mail routing service, including full POP3 and SMTP servers, internal mail system, webmail access and MX-record capabilities. Easy to configure - up and running in minutes.
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Out Spam 

Out Spam is a spam filter program. It can remove junk letters from a POP3 mail server without downloading them to a client computer. The principal way to separate mail is the use of worldwide black lists of spam mail servers.
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SMTP/POP3 Email Engine for COBOL 

SMTP / POP3 COBOL email component library uses a simple API to send and receive mail, including HTML and MIME attachments, from an application. Winsock and TCP/IP knowledge not needed. Not dependant on support libraries. Fujitsu and MicroFocus COBOL
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