"Developing one of the better e-mail servers for the Windows market is one thing. Taking on the Linux world with an e-mail server that is neither open source nor free in any sense of the word is an entirely different kettle of fish.
"IceWarp's Merak Linux Mail Server has taken the plunge, however, and delivers a high-performance mail engine and a suite of additional components, including anti-spam and groupware, that add up to a strong 'single source' package..."