Supported Platforms

Supported server & client environments

Standalone Environments

Linux

Red Hat Enterprise

64 bit Red Hat Enterprise Linux 9 new
64 bit Red Hat Enterprise Linux 8

CentOS

64 bit CentOS Stream 9 new
64 bit CentOS Stream 8

Oracle Linux

64 bit Oracle Linux 9 new
64 bit Oracle Linux 8

Alma & Rocky

64 bit Rocky Linux 8 new
64 bit Alma Linux 8 new
64 bit Alma Linux 9 new

Ubuntu

64 bit Ubuntu Server 22.04 LTS new
64 bit Ubuntu Server 20.04 LTS

Debian

64 bit Debian 11 new

Windows

Windows Server

64 bit Microsoft Windows Server 2022 new
64 bit Microsoft Windows Server 2019

Windows 11

64 bit Microsoft Windows 11 new

Windows 10

64 bit Microsoft Windows 10

Clustering Environments

Red Hat Clustering Suite

CentOS

64 bit CentOS Stream 9
64 bit CentOS Stream 8

Red Hat Enterprise

64 bit Red Hat Enterprise Linux 9
64 bit Red Hat Enterprise Linux 8

Windows Failover Cluster

Windows Server

64 bit Microsoft Windows Server 2022
64 bit Microsoft Windows Server 2019

Veritas Cluster Server

Red Hat Enterprise Linux

64 bit Red Hat Enterprise Linux 9
64 bit Red Hat Enterprise Linux 8

ActiveSync Clients

Mobile

Android

Android 13
Gmail client, Calendar, and Contacts apps

iOS / iPadOS

iOS 16, iPadOS 16 iOS 15, iPadOS 15 Mail, Calendar, Reminders, Notes, Contacts apps

CalDAV Clients

Mobile and Desktop

Android

Android 13
DAVx5 / OpenTasks

iOS / iPadOS

iOS 16, iPadOS 16 iOS 15, iPadOS 15 Calendar app

macOS

macOS 13 Ventura macOS 12 Monterey Calendar app

Thunderbird

Thunderbird 60 / Lightning 6.2.5

Windows

Windows 11 (Calendar app) Windows 10 (Calendar app) eM Client 9

CardDAV Clients

Mobile and Desktop

Android

Android 13
DAVx5

iOS / iPadOS

iOS 16, iPadOS 16 iOS 15, iPadOS 15 Contacts app

macOS

macOS 13 Ventura macOS 12 Monterey Contacts app

Thunderbird

Thunderbird (using the SOGO Connector)

Windows

Windows 11 (Contacts app) Windows 10 (Contacts app) eM Client 9

Notes Clients (IMAP Sync)

Mobile and Desktop

iOS / iPadOS

iOS 16, iPadOS 16 iOS 15, iPadOS 15 Notes app

macOS

macOS 13 Ventura macOS 12 Monterey Notes app

Supported Web Browsers

WebMail, Standard WebMail, WebAdmin

Edge

Microsoft Edge 79+

Firefox

Mozilla Firefox 54+

Chrome

Google Chrome 51+

Safari

macOS Safari 11+

Mobile WebMail

Android

Android 4.4+ default browser Google Chrome 44+

iOS

iOS 7+ Safari Google Chrome 44+