Project Summary
Open-Xchange sets the standard for email, messaging and collaboration in the cloud, with all the advantages of open data. It’s very easy to implement and support, and scales better than anything else on the market.
Integrates with your existing backend processes: billing, provisioning, databases and mail servers. It fits most complex heterogeneous environments without having to remove components, such as email servers. Lets you use your tools for authentication, user setup, system administration, procurement, accounting and email storage.
Scales to meet market demand, whether you need to provision thousands or millions of users.
See https://www.openhub.net/p/ox-frontend for client-side components.
In a Nutshell, OX App Suite Middleware...
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has a well established, mature codebase
maintained by a very large development team
with decreasing Y-O-Y commits -
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took an estimated 1,340 years of effort (COCOMO model)
starting with its first commit in April, 2007
ending with its most recent commit 19 days ago
GNU General Public License v2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
Did You Know...
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55% of companies leverage OSS for production infrastructure
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compare projects before you chose one to use
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use of OSS increased in 65% of companies in 2016
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30 Day SummaryNov 21 2025 — Dec 21 2025
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12 Month SummaryDec 21 2024 — Dec 21 2025
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