Kerio MailServer 6.5

Kerio MailServer is a messaging and collaboration server that provides powerful protection against viruses and spam, and delivers secure access to e-mail, contacts, tasks and calendars.

A true groupware replacement for Microsoft Exchange, Kerio MailServer is ideally suited for the needs of small and medium sized companies, allowing Microsoft Outlook and Microsoft Entourage clients to easily access e-mail messages and collaboration tools.