Benefits

Cost-effective

• initial investment and upgrades cost less than 50% of MS Exchange

Effective sharing via multiple clients

• Effective communication by sharing e-mail, calendar and contacts
• Stable Outlook sharing for all Outlook versions by full MAPI implementation
• Support for IMAP and iCal based clients

Work wherever you want

• Webaccess compatible with Internet explorer and Firefox
• Remote Outlook synchronisation over HTTPS
• Advanced offline mode for laptop users
• Remote synchronisation & push-mail of all ActiveSync compatible PDA’s and phones (Windows Mobile, iPhone, Nokia Mail for Exchange)

Technical benefits

• Freedom to integrate your own Linux MTA, like Postfix, Sendmail or Qmail
• Easy migration: Via migration tools, data can be imported from existing MS Exchange environments or IMAP based solutions
• Multi-user week calendar in webaccess
• Brick-level backup with single item and single mailbox restore
• Integration with existing LDAP environments, like OpenLDAP, Active Directory or eDirectory

Open source & open standards

• Source code available under the Affero GPLv3 license
• Open architecture supporting Apache, MySQL, PHP
• Gateways to IMAP, POP3, iCal, Caldav