OX6:OX System Requirements
Open-Xchange Server 6 Requirements - Open-Xchange supported components overview
The following table provides an overview about the supported components of Open-Xchange Server 6. This overview makes no claim to be complete.
OX App Suite overview tables about the supported components are available at OX App Suite Requirements - Open-Xchange supported components overview
Information about Maintenance expiries of components, versions and browser support, can be found at Maintenance Expires Table
Installation-, Hardware-, Software-Requirements
Please note: Installation and administration of the Open-Xchange Server Edition requires basic knowledge of E-Mail systems under Linux, Apache and MySQL as well as experience in the command line administration of Linux systems.
Open-Xchange Server Edition:
- Memory 8 GB - 12 GB
Please Note: If you want to install OX in a VM memory needs to be allocated exclusively to that installation (and not shared with other VM's). This also applies to the database and other related systems or componenets. - Disk 500 MB plus User Data
- Supported IMAP Server: Dovecot (Recommended), Cyrus and Courier (To some extent, may mot support all features)
Desktop Browser (Minimum display resolution: 1024 x 768)
| Browser | OX 6 User Front-End |
| Microsoft Internet Explorer 8/9/10 | v6.22.13 |
| Mozilla Firefox (latest & previous version) | v6.22.13 |
| Google Chrome (latest & previous version) | v6.22.13 |
| Apple Safari (latest version & previous version. Mac OS X only) | v6.22.13 |
Calendar/Contact synchronization Apple Mac OS X
| Requirement | Calendar synchronization with CalDAV | Contacts synchronization with CardDAV |
| Mac OS X 10.11 (El Capitan) | 
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| macOS 10.12, 10.13 (Sierra & High Sierra) |
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Calendar/Contact synchronization Apple iOS
| Requirement | Calendar synchronization with CalDAV | Contacts synchronization with CardDAV |
| Apple iOS 10 / iOS 11 / iOS 12 |
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Mobility Solution - Supported- Platforms, Features and Devices
| Feature/Technology/Device | OXtender for Business Mobility (availalble for App Suite, OXHE, OXSE) |
| Exchange Active Sync 2.5 |
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| Exchange Active Sync 12.1 |
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| Access and creation of emails |
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| Personal PIM folder |
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| Public and Shared PIM folder | 
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| Global address book |
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| Push E-Mail |
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| Windows Phone 8 (latest & previous minor versions), Windows Phone 10 (latest & previous minor versions) |
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| Apple iOS 10 / iOS 11 / iOS 12 |
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| Android 4.1 or later |
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Server Platforms
| Platforms | Supported Java Versions | Supported Database |
| Suse Linux Enterprise Server 12 | OpenJDK 7 | MariaDB 10.0 |
| Red Hat Enterprise Linux 6 | OpenJDK 7 | MySQL 5.1 |
| Red Hat Enterprise Linux 7 | OpenJDK 8 | MariaDB 5.5 |
| Debian 8 (Jessie) | OpenJDK 7 | MySQL 5.5, MariaDB 10.1 |
| CentOS 6 | OpenJDK 7 | MySQL 5.1 |
| CentOS 7 | OpenJDK 8 | MariaDB 5.5 |
| Univention Corporate Server 4 | OpenJDK 7 | MySQL 5.5 |
Please Note: To gain higher availability a setup based on Percona XtraDB Cluster is supported like described in this article: Galera database setup. Open-Xchange supports the "Percona XtraDB Cluster 5.5" flavor of the Galera database and starting with OX 7.8.0 also version 5.6.x.