avg secure

A fast and secure email server supporting SMTP, POP3, IMAP4, SSL and WEBMAIL.

Add support for SSH (Secure Shell) to your .NET (VB.NET or C#) application

A fully featured e-mail program that makes it easy to secure your e-mail.

Active port forwarder is a software tool for secure port forwarding.

Snowbox is a simple, secure and easy to setup POP3 server in Perl.

Free, secure & fast P2P File-Sharing.

Setup your Private and Secure Instant Messaging Network.

Send secure encrypted email and zip files with MessageLock for Outlook.

An FTP server that strives to be secure, simple, and efficient.

lock your files at windows kernel level (very secure and super fast).