Feature

IMail

IMail Plus

IMail Premium

Standard Anti-Virus for IMail

Premium Anti-Virus for IMail

Solid, scalable, standards-based email server with Webmail and list server

Basic anti-spam with blacklists, Bayesian filters, phrase filters, and more.

Basic security with SMTP authentication, dictionary attack sensing, and anti-hammering

Language-aware, automatically updated premium anti-spam technology from Mail-Filters®

State of the art anti-virus technology developed by SOFTWIN BitDefender.

Carrier-grade premium anti-virus protection powered by Symantec® Scan Engine

Secure instant messaging with Smart Tag support.

Shared Microsoft Outlook calendars and global address books

Twelve months' support and updates