HEATKEYS

AfterLogic offers mail server, ajax webmail with calendar, mail components, development and installation services

Axigen is an integrated email, calendaring & collaboration platform, built on a unique Linux mail server technology, for increased speed & security.

iRedMail is a free, full featured, easy-to-install, open source email server solution which powered by pure open source software, provides POP3, IMAP, SMTP, anti-virus and advance anti-spam features, works on Red Hat Enterprise Linux, CentOS, Debian ...

eMailman -- electronic superhero(sm)

Since 1991 CommuniGate Systems has developed carrier-grade Unified Communications software for broadband and mobile operators to deliver value-added services as SaaS, or Cloud-based services to the business communities. Over 150 million users across ...

GIAC provides information security certifications for IT managers and security professionals.

Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.

Dovecot - Secure IMAP and POP3 server

Roaring Penguin Software, the email filtering experts, specialize in anti-spam, email and virus protection software for Education, Internet Service Providers ( ISPs ), Web Hosting, Managed Service Providers (MSPs), Governments and Business Enterprise...

Small Business Computing is dedicated to providing technology solutions for small business owners. Small Business Computing is the online resource for informative software reviews, e-commerce tools, tricks of the online marketing trade, buyers guides...

Unixmen provides Unix/Linux News, tutorials, howtos Tips and tricks,linux downloads. A Linux forum also a www news blog.