1. New services:
• SyncML - synchronize your mobile devices with the server. Tasks, appointments, contacts can all be synced.
• Mobile web client - for users who want lightweight mobile access for basic email access.
• SMS connector - email to SMS, either by using your own phone or an SMS gateway.

2. Updated webmail client:
• Faster - optimized loading and access to get to allow you to work faster
• Server side file storage - save your attachments to the server, or upload files
• File publishing - users can send URL links to other people to view file storage folders
• Overlay shared calendars, add appointments faster, and more...

3. Improved antispam features:
• DKIM - help ensure that emails come from who they say they are
• Abuse detection - detect and block attacks automatically

4. Other additions:
• Activity reporting - view recent activity for a mailbox
• SMTP TLS outbound sending
• POP Retrieval service now supports SSL
• Message archiving - save messages as they pass through the server
• Log file archiving - compress older log files automatically
• Statistics program improvements