Standalone Environments
Linux
Red Hat Enterprise
Red Hat Enterprise Linux 9 new
64 bitRed Hat Enterprise Linux 8
64 bitCentOS
CentOS Stream 9 new
64 bitCentOS Stream 8
64 bitOracle Linux
Oracle Linux 9 new
64 bitOracle Linux 8
64 bitAlma & Rocky Linux
Rocky Linux 8 new
64 bitRocky Linux 9 new
64 bitAlma Linux 8 new
64 bitAlma Linux 9 new
64 bitUbuntu
Ubuntu Server 22.04 LTS new
64 bitUbuntu Server 20.04 LTS
64 bitDebian
Debian 11 new
64 bitWindows
Windows Server
Microsoft Windows Server 2022 new
64 bitMicrosoft Windows Server 2019
64 bitWindows 11
Microsoft Windows 11 new
64 bitWindows 10
Microsoft Windows 10
64 bitClustering Environments
Red Hat Clustering Suite
CentOS
CentOS Stream 9
64 bitCentOS Stream 8
64 bitRed Hat Enterprise
Red Hat Enterprise Linux 9
64 bitRed Hat Enterprise Linux 8
64 bitWindows Failover Cluster
Windows Server
Microsoft Windows Server 2022
64 bitMicrosoft Windows Server 2019
64 bitVeritas Cluster Server
Red Hat Enterprise Linux
Red Hat Enterprise Linux 9
64 bitRed Hat Enterprise Linux 8
64 bitActiveSync Clients
Mobile
Android
Gmail client, Calendar, and Contacts apps
Android 13iOS / iPadOS
Mail, Calendar, Reminders, Notes, Contacts apps
iOS 16iPadOS 16Mail, Calendar, Reminders, Notes, Contacts apps
iOS 15iPadOS 15CalDAV Clients
Mobile and Desktop
Android
DAVx5 / OpenTasks
Android 13iOS / iPadOS
Calendar app
iOS 16 iOS 15Calendar app
iPadOS 16 iPadOS 15macOS
Calendar app
macOS 13 Ventura macOS 12 MontereyThunderbird
Thunderbird 60 / Lightning 6.2.5
Windows
Calendar app, eM Client 9
Windows 11 Windows 10CardDAV Clients
Mobile and Desktop
Android
DAVx5
Android 13iOS / iPadOS
Contacts app
iOS 16 iOS 15Contacts app
iPadOS 16 iPadOS 15macOS
Contacts app
macOS 13 Ventura macOS 12 MontereyThunderbird
Thunderbird 60 (using the SOGO Connector)
Windows
Contacts app, eM Client 9
Windows 11 Windows 10Notes Clients (IMAP Sync)
Mobile and Desktop
iOS / iPadOS
Notes app
iOS 16 iOS 15Notes app
iPadOS 16 iPadOS 15macOS
Notes app
macOS 13 Ventura macOS 12 MontereySupported Web Browsers
WebMail, Standard WebMail, WebAdmin
Chrome
Google Chrome 51+
Firefox
Mozilla Firefox 54+
Edge
Microsoft Edge 79+
Safari
macOS Safari 11+
Mobile WebMail
Android
Android 4.4+ default browser
Google Chrome 44+
iOS
iOS 7+ Safari
Google Chrome 44+