hMailServer
mail server for Windows hMailServer is a full-featured Windows mail server with full support for SMTP, POP3 and IMAP4. It offers a wide array of features, including a built-in spam filtering system, support for external virus scanners, SSL...
Free
CleanMail Server 5.9.2.1
6
CleanMail Server (formerly NoSpamToday! for Servers) is an SMTP proxy server based spam filter that sits between the internet and your mail server. It accepts the incoming mail, filters it and passes it on to your mail server... 
NetMailBot 5.0.4
5
NetMailBot is acommand line email application that runs from a DOS command prompt, which allows it to be easily called from other applications. It can be used from inside existing applications to send email notices, invoices...
Looking for more choices? There are 6 more downloads in our Mail Server (freeware) category.
