Kerio Connect (formerly known as MailServer) is an alternative, allowing companies to collaborate with each other via email, sharing contact lists, sharing schedules, notes and actions.
Kerio Connect includes:
• Groupware - groupware - support for Outlook, Entourage, iCal, Apple Address Book, web mail, and smartphones.
• Synchronize email and wireless PIM with Palm, Windows Mobile, Symbian and BlackBerry devices
• Protection against spam and viruses
• Email archiving
• Automatic backup
The program runs on Mac OS X 10.3.9 or later operating systems, and it can be remotely managed with decoding channels.
This new version has:
• Add support for HTC Desire and HTC Bravo phone devices
• Upgrading using HTTP keep-alive connection in WebMail.