License limited to 50 Domains 250 Users. Smartermail Enterprise provide the below features over the Profesional edition:
- Groupware - Shared calendars, tasks, and contacts
- LDAP Support
- Active Directory Authentication
- Email Archiving
- Outlook Connectivity via Web Services
- SmarterMail Sync for Microsoft Outlook™
- SmarterMail Sync for Pocket PC 2005 and SmartPhones
- Support for SSL/TLS connections
Additionally to that, Enterprise Edition covers the following benefits as well:
- 99% Spam Blocking with the built in Greylisting, SpamAssassin, Custom Spam Weights, Outbound & Inbound Spam checks and blocking, Reverse DNS checking, SPF checks, Bayesian Filtering, RBL filtering
- AJAX Spell checking
- Auto complete of address field
- Inbox message preview Windows
- Real time performance dashboard
- Historical reporting
- Out of the box Antivirus - ClamAV
