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Built-in high speed webmail or IIS integration
Fully encrypted communications using SSL, TLS and STARTTLS
Configurable rules on the server
Calendar synchronization using CALDAV open standard
High performance native code
Supports all popular email clients
Shared folders
Public folders
Contacts
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
