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Calendar synchronization using CALDAV open standard
Built-in high speed webmail or IIS integration
Calendaring with Syncml and CALDAV support
Scalable to 1000s of users
Automatically compresses email in mailboxes
High performance native code
Shared folders
Public folders
Contacts
Server rules
Multiple domain support
Active Directory and LDAP
Antispam & Antivirus options
High performance multiplexing
Secure Authentication Support
Access Control Lists
Windows and Linux support
Open Internet Standards
Support for mobile devices
Intuitive administration interface
