Zimbra vs Office 365
Zimbra is an open source and privacy-friendly
Office 365 alternative.
Get the best collaboration solution without Office’s surveillance.
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| True Data Sovereignty | |  |
| Open Source-based | | |
| Calendar | | |
| Chat | | |
| Drive | | |
| Videoconferencing | | |
| Document | | |
| Spell Check | | |
| Custom dictionary | | |
| Print preview | | |
| Attachment size | Configurable | Limited |
| Inbox size | Configurable | Limited |
| Cross platform compatibility | | Limited |
| Sharing contacts with internal, external and public users | | |
| Sharing tasks with internal, external and public users | | |
| Apps/Zimlets | | Only Office |
| Email as attachment | | |
| Contact CSV import / export | | |
| Searches saved | | |
| Code Customization | | |
| Scalability | Wide | Limited |
| Training | | |
| 24×7 Dedicated Support | | |
| Private Cloud | | |
| Page navigation | | |
| Many signatures | | |
| Attachments in reply | | |
| Address context in email | | |
| Zip file of messages | | |
| Appointment created from email | | |
| Many message forward | | |
| Email as attachment | | |
| Copy and move contacts | | |
| Time zone auto mods | | |
| Declined appointments greyed out | | |
| Small calendar view | | |
| Date hover in small calendar view shows schedule | | |
| iCal import | | |
| Show calendar in iCal format | | |
| Continuous, robust and fast search | | |
| Searches saved | | |
