Commercial-grade maintenance
Dedicated developers team adds new features and improvements on a regular basis.

Secure
Can run on a secure HTTPS server and communicate with a mail server over SSL connection.

International
More than 30 languages, right-to-left interface support (for Hebrew and Arabic), date and time formats.

Has Personal Calendar
Supports single and recurring events with reminders, can act as CalDAV server for syncing with external applications and mobile devices.

Files
Implements...