Email hosting for multiple domains
Domain aliases
Email routing
Email and Folder sharing
Streams - Collaboration tool
Offline access
Email recall
eWidget and Developer Space
Tasks, Notes and Bookmarks
IMAP/ POP access in email clients
Huge attachments upto 250 MB
Exchange Activesync
Mobile apps for iOS and Android
Everything in MAIL LITE +
Huge Attachments upto 1 GB
Archival and eDiscovery
Email backup and restoration
White labeling
S-MIME
Calendar
Resource booking**
Everything in Business Basic +