Open-Xchange
Cologne webmail and productivity suite sold to providers and public bodies
At a glance
| Company | Open-Xchange AG |
|---|---|
| Category | Email Client Apps |
| Headquarters | Cologne, Germany |
| Founded | Not stated |
| EU Presence | Yes - Germany (EU) |
| Data Location | not stated on the pages we read |
| Open Source | Based on open source technologies (as stated; some third-party components) |
| GDPR Compliant | Yes |
| Self-Hosting | not stated on the pages we read |
| Main Features | OX App Suite webmail and productivity apps, Dovecot Pro email server, PowerDNS, email transition for telcos, public sector deployments |
| Pricing | not shown on the pages we read (contact sales, demo) |
| Best For | Organisations and providers that need a sovereign webmail platform at scale |
| Replaces | Gmail, Microsoft Outlook |
Our review
Open-Xchange AG operates ox.io and open-xchange.com from Erftstraße 15-17 in Cologne. The legal notice lists the District Court Cologne register entry HRB 95366, a German VAT ID and a management board with Andreas Gauger as CEO.
The home page calls OX the open platform for business communication, a carrier-grade alternative to Gmail and Outlook with secure, sovereign email and productivity apps. The products are OX App Suite for service providers and for the public sector, Dovecot Pro and PowerDNS.
Who buys OX App Suite
OX App Suite is sold to service providers that white-label email and to public sector bodies such as government, education and regulated institutions. The site highlights data sovereignty and jurisdictional control for those buyers.
Individuals normally reach OX through a provider's webmail, not through an OX sign-up page.
Open-source base and licences
Open-Xchange states that its products are based on open source technologies with deployments in the millions, developed together with a large open source community.
The terms page also notes that some technology is third-party, so not every component is open source.
Open-Xchange compared with Superhuman
Superhuman sells a polished app directly to users at $25 USD per member per month on Starter. Open-Xchange sells infrastructure to organisations and provides no consumer price list in the pages we read.
It fits readers who want a European platform behind many mailboxes, not a faster personal inbox.
Where it falls short
Open-Xchange is a B2B platform: the pages we read show no self-service plan, no price and no trial for individual users. Superhuman-style speed features such as snooze or AI drafting are not described. Ownership of the company is not stated on the pages we read. A personal user will get OX only through a provider that runs it; for a direct sign-up see Tuta.
Who Open-Xchange fits
Hosting providers, telcos and public sector IT teams that want a European webmail and productivity platform they can run or white-label.
What works, what does not
Pros
- German AG with register number, VAT ID and management published
- Open source technologies as a stated base
- Public sector and sovereignty focus
- Includes Dovecot Pro and PowerDNS for operators
- Described as an alternative to Gmail and Outlook
Cons
- Not sold to individuals directly
- No prices on the pages we read
- No snooze or AI drafting described
- Ownership of the company not stated on the pages we read
Pros and Cons
Pros
- German AG with register number, VAT ID and management published
- Open source technologies as a stated base
- Public sector and sovereignty focus
- Includes Dovecot Pro and PowerDNS for operators
- Described as an alternative to Gmail and Outlook
Cons
- No direct sales to individuals
- The pages we read show no prices
- Snooze and AI drafting are not described
- Who owns the company is not stated
Alternatives to Open-Xchange
Further European email client apps to compare:
See all European email client apps or compare them directly against Gmail on our alternatives page.
Questions buyers ask
Only for organisations. Open-Xchange AG in Cologne sells OX App Suite as a sovereign alternative to Gmail and Outlook, but it is a platform for providers, not a personal inbox app.
Open-Xchange states its products are based on open source technologies. The terms add that some third-party technology is included.
Not from the pages we read. They offer demos and contact forms for providers and the public sector, and no self-service plan.