Nextcloud Groupware

Team planning and email made easy

Nextcloud Groupware offers easy-to-use web mail, calendaring and contacts that helps your team get things done quicker and easier.

Easy access, anywhere

An efficient, modern and easy-to-use web interface for small or large teams.

Less distractions and deep integration in other Nextcloud products means more productivity, wherever you are!

Ultimate security

An open source, on-premises product.

Emails, calendars and contacts are stored on your own infrastructure, without any third party ever gaining access.

Deep integration

Integration into iOS, Android, Mac, Windows, Linux, Outlook, Thunderbird.

Simple deployment, configuration and integration lower costs and decrease risk while leveraging your existing IT investment.

Key features

Nextcloud Mail

Send and receive emails in a breeze

  • Multiple accounts with unified inbox
  • Easy-to-use folder management
  • Supports end-to-end encryption using OpenPGP

Nextcloud Calendar

Schedule work and meetings online

  • Create multiple calendars
  • Integrate external calendar resources (WebCal)
  • Share your calendars with your team or make them public

Nextcloud Contacts

Keep your relations organized

  • Track birthdays of your contacts
  • Share your addressbooks with your team
  • Sync your contacts with phones and other devices

Nextcloud Groupware relies on native IMAP and SMTP capabilities. It fluently integrates into your existing infrastructure while also providing its own.

Unique advantages


Nextcloud Groupware is designed to deeply integrate in your infrastructure, using existing user directories and file storage systems.
Learn more about user management
Learn more about storage technologies


Nextcloud Groupware is engineered from the ground up to be secure with the latest web protections and secure login technologies like Brute Force Protection and 2-factor authentication.
Learn more about security


Nextcloud Groupware is built to host yourself and work with existing SMTP and IMAP/POP3 servers. This simplifies compliance by putting you in control. Nextcloud supports you with excellent monitoring and audit-ready logging functionality.
Learn more about monitoring and logging

Sync Calendars and Contacts
with Microsoft Outlook

in action

With the Outlook CalDav Synchronizer, Outlook users can easily sync their events, tasks and contacts between Microsoft Outlook and their Nextcloud server.

in action

Full Outlook synchronization

The CalDAV and CardDAV plugin offers two-way sync for CalDAV calendars and tasks, CardDAV contacts and can also handle the Google native Contacts and Tasks API.

The plugin handles Outlook categories, mapping CalDAV server colors to Outlook category colors and syncing calendars and tasks to the categories. The plugin also handles timezones and recurring events with exceptions and can deal with Outlook custom properties.

in action


The Outlook CalDav Synchronizer supports:

  • SSL/TLS, also with self-signed certificates and proxy;
  • Auto discovery of calendars and address books;
  • Configurable sync time range filter;
  • Time-triggered-sync and sync changes from Outlook immediately;
  • and it can use server settings from an Outlook IMAP/POP3 account profile.

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