Start your journey to digital sovereignty
With the market leader for groupware that has more than 220 million users
![Header-1 Header-1](https://www.open-xchange.com/hs-fs/hubfs/Header-1.png?width=800&height=465&name=Header-1.png)
Open-Xchange email is the perfect start for all your employees
The email suite includes everything you need
![OX-Mail_new](https://www.open-xchange.com/hubfs/OX-Mail_new.png)
- Erstellen Sie Ordner, Registerkarten und Filterregeln
- Markieren, Sortieren und Suchen
- Anhänge anzeigen und per Drag-and-Drop verschieben
- Erweiterte Urlaubsmeldungen - mit Warnungen
- Gruppenpostfächer (auch Funktionspostfächer genannt)
- Delegierung – Senden Sie E-Mails im Namen einer anderen Person
![OX-Calendar_1024x1024](https://www.open-xchange.com/hubfs/OX-Calendar_1024x1024.png)
Kalender
- Mehrere Ansichten: Tag, Arbeit, Woche, Monat, Jahr
- Gemeinsame Kalender und Delegierung
- Mehrere Erinnerungen - vor und nach dem Ereignis
- Erstellen Sie Folge- oder wiederkehrende Termine
![OX-Address-Book_small](https://www.open-xchange.com/hubfs/OX-Address-Book_small.png)
Kontakte
- Sammelt Adressen automatisch
- Vollständige Details einschließlich Fotos
- Import und Export
- Mit allen Geräten synchronisieren (CardDAV)
- Persönlich, öffentlich und geteilt
- Kontakte einfach finden
![OX-Mail_new](https://www.open-xchange.com/hubfs/OX-Mail_new.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![OX-Calendar_1024x1024](https://www.open-xchange.com/hubfs/OX-Calendar_1024x1024.png)
Calendar
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![OX-Address-Book_small](https://www.open-xchange.com/hubfs/OX-Address-Book_small.png)
Contacts
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)
Our proven groupware allows you to create the foundations of digital sovereignty. Digital workplaces are most effective when they integrate all your applications and specialist processes.
![puppet02 puppet02](https://www.open-xchange.com/hs-fs/hubfs/puppet02.png?width=450&height=594&name=puppet02.png)
Our mission for more than 20 years:
Open-source software alternatives for true digital independence.Providers of proprietary software are in control of your data because the standards, interfaces and algorithms are not available. This creates lasting dependency.
Independence through transparency
Break free from this dependency with open-source software. When every line of software can be checked by your IT experts, you gain security over your systems and the data related to your customers, citizens, and employees.The advantages are apparent
![icon3-1 icon3-1](https://www.open-xchange.com/hs-fs/hubfs/icon3-1.png?width=120&height=120&name=icon3-1.png)
Freedom to develop the
IT strategy you need
![icon2-1 icon2-1](https://www.open-xchange.com/hs-fs/hubfs/icon2-1.png?width=120&height=120&name=icon2-1.png)
Huge savings
in license costs
![icon4 icon4](https://www.open-xchange.com/hs-fs/hubfs/icon4.png?width=120&height=120&name=icon4.png)
Self-determination and control when backing up data
Data center or cloud - you decide
You decide where your data is stored and who can access it - regardless of whether it is cloud-based, in your own data center, that of a service provider or on premise.
![Cloud or server Cloud or server](https://www.open-xchange.com/hs-fs/hubfs/Cloud%20or%20server.png?width=800&height=611&name=Cloud%20or%20server.png)
Complete digital workplaces for your employees
Together with our partners, we provide individual solutions for users in public sector organizations and set everything up.
Rights management
Integration of all applications
Connection of specialist procedures
Document syncing
Document storage
Video conferencing
![Partners2-1 Partners2-1](https://www.open-xchange.com/hs-fs/hubfs/Partners2-1.png?width=500&height=430&name=Partners2-1.png)
Some of our software partners
![point](https://www.open-xchange.com/hubfs/tick.png)
Rights and Identity Management
![point](https://www.open-xchange.com/hubfs/tick.png)
Document storage, syncing and editing
Some of our solution partners
![point](https://www.open-xchange.com/hubfs/tick.png)
![point](https://www.open-xchange.com/hubfs/tick.png)