Email-Pro

5 GB per user
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
Exchange ActivesyncSync emails, contacts and calendar to email clients on Windows, iOS or Android devices.
Mobile apps for iOS and Android

50 GB per user
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
Exchange Activesync
Mobile apps for iOS and Android
Huge attachments
Archival and eDiscovery
Email backup and restoration
White labeling
S-MIME

30 GB Mail storage
Email hosting for multiple domains
Domain aliases
Email routing
Email and Folder sharing
Streams - Collaboration tool
Offline access
Email recall
eWidget and Developer Space
Calendar, Tasks, Notes and Bookmarks
IMAP/ POP access in email clients
Exchange Activesync
Mobile apps for iOS and Android
Zoho WorkDrive
250 MB File upload limit
File and Folder sharing
Universal content search
External file sharing (1 external link per file)
Encryption at rest (256-bit AES) and SSL/TLS encryption
Preview of 160+ file formats
Desktop Sync
Mobile access
Fully featured office suite with Zoho Writer (for documents), Zoho Sheet (for spreadsheets) and Zoho Show (for presentations)
Unlimited Writer, Sheet, and Show files
Up to 50 collaborators in a document
Unlimited organization and private channels
Up to 100 members per channel
One-to-one Audio and Video calls

Unlimited Mail storage
Email hosting for multiple domains
Domain aliases
Email routing
Email and Folder sharing
Streams - Collaboration tool
Offline access
Email recall
eWidget and Developer Space
Calendar, Tasks, Notes and Bookmarks
IMAP/ POP access in email clients
Exchange Activesync
Mobile apps for iOS and Android
Zoho WorkDrive
250 MB File upload limit
File and Folder sharing
Universal content search
External file sharing (1 external link per file)
Encryption at rest (256-bit AES) and SSL/TLS encryption
Preview of 160+ file formats
Desktop Sync
Mobile access
Fully featured office suite with Zoho Writer (for documents), Zoho Sheet (for spreadsheets) and Zoho Show (for presentations)
Unlimited Writer, Sheet, and Show files
Up to 50 collaborators in a document
Unlimited organization and private channels
Up to 100 members per channel
One-to-one Audio and Video calls