Grommunio
🇦🇹 Austria, Vienna · Founded 2019
Grommunio — European alternative
Key Features
- Drop-in Microsoft Exchange replacement with full MAPI, EWS, EAS, CalDAV, CardDAV, IMAP, POP3, and SMTP protocol support
- Native compatibility with Microsoft Outlook without requiring client-side MAPI extensions
- Integrated suite covering email, calendar, contacts, tasks, notes, chat, video conferencing, and file storage
- Built-in mobile device management (MDM) for enterprise fleet administration
Replaces
Microsoft ExchangeMicrosoft 365
At a Glance
Headquarters🇦🇹 Vienna, Austria
Founded2019
Open SourceYes
Free TierYes
GDPR CompliantYes
CategoryOffice Suites
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