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GFI KerioConnect® – System Requirements

Check out the system requirements, specifications and other important details about GFI KerioConnect®
GFI KerioConnect® – System Requirements
  • SERVER
  • END-USER
  • MIGRATION TOOLS

OPERATING SYSTEM

Windows 64-bit versions

  • Microsoft Windows Server 2025

  • Microsoft Windows Server 2022

  • Microsoft Windows Server 2019

  • Microsoft Windows Server 2016

Linux 64-bit versions

  • Debian 13 (Trixie)

  • Ubuntu 24.04 LTS

  • Red Hat Enterprise Linux 7, 8, 9 and CentOS 6, 7, 8

  • Debian 11, 12

  • Ubuntu 19.04, 20.04, 22.04

  • Alma and Rocky Linux 9.5

Mac (Intel and M1/M2/M3)

  • MacOS Tahoe

  • macOS 15 Sequoia

  • macOS 14 Sonoma

  • macOS 13 Ventura

  • macOS 12 Monterey

  • Emulator Rosetta 2 needs to be used with M1/ M2/M3 chipsets

HARDWARE

PC

  • Minimal HW configuration (1-20 users):
    2 Core CPU 1 GHz 64-bit, 4 GB RAM, 40 GB of free space for message store and backup

  • Recommended HW configuration (20-100 users):
    4 Core CPU 2 GHz 64-bit, 8 GB RAM, 160 GB of free space for message store and backup

  • Recommended HW configuration (100+ users):
    8 Core CPU 2.8 GHz 64-bit, 16 GB RAM, 64-bit OS, 200 GB+ of free space for message store and backup

Mac (Intel/M1/M2/M3)

  • Minimal HW configuration (1-20 users):
    Mac Core2Duo 64-bit, 4 GB RAM, 40 GB of free space for message store and backup

  • Recommended HW configuration (20-100 users):
    Mac Core i5 64-bit, 8 GB RAM, 160 GB of free space for message store and backup

  • Recommended HW configuration (100+ users):
    Mac Core i7 64-bit, 16 GB RAM, 200 GB+ of free space for message store and backup

  • Emulator Rosetta 2 needs to be used with M1/ M2/M3 chipsets

VMWare / HyperV

  • The same requirements as for the standard installation + the host OS overhead.

DIRECTORY SERVER EXTENSIONS

Kerio Active Directory Extension 64-bit

  • Microsoft Windows Server 2022

  • Microsoft Windows Server 2019

  • Microsoft Windows Server 2016

Install on Active Directory Server for user management, import and authentication in KerioConnect.

Kerio Open Directory Extension (Legacy)

  • macOS 10.14 Server

  • macOS 10.13 Server

  • macOS 10.12 Server

  • OS X 10.11 Server

  • OS X 10.10 Server

  • OS X 10.9 Server

  • OS X 10.8 Server

    Install on Apple Open Directory Server for user import and authentication in KerioConnect.

WEB ADMINISTRATION

Web Browsers

  • Internet Explorer 11 and Edge

  • Google Chrome 31 and higher

  • Safari 9 and higher

  • Safari on Apple iPad

  • Firefox 23 and higher

MICROSOFT OUTLOOK

Kerio Outlook Connector

  • 32-bit version:

    • Microsoft Outlook 365 and Outlook  2024(classic mode only), 2021, 2019, 2016

      • The NEW Outlook 2024 edition does not support COM extensions

    • Using 32-bit Outlook Connector, Microsoft Outlook may run on:

      • Windows 7, 8, 10, and 11.

      • Windows Server 2008, 2008 R2, 2012, 2012 R2. 

      • Terminal Server on Windows Server 2008, 2008 R2, 2008 R2 Foundation, or Windows Server 2012.

        Microsoft Internet Explorer 6.0 or higher must be present.

  • 64-bit version:

    • Microsoft Outlook 365 and Outlook 2024(classic mode only), 2021, 2019, 2016

      • The NEW Outlook 2024 edition does not support COM extensions

    • The supported Operating system versions are the same as for 32-bit, except when using the 64-bit Outlook Connector, the underlying Windows Operating system must also be on 64-bit architecture.

Note: If you are using Outlook versions marked End-of-Support by Microsoft, they may also work with the latest Kerio Outlook Connector; however, we do not officially support them. You may also use older versions of Kerio Outlook Connector for better compatibility with older Outlook versions. 

MICROSOFT WINDOWS

KerioConnect Client for Windows

  • Win Server 2019

  • 64-bit versions:

    • Microsoft Windows 10

    • Microsoft Windows 11

  • 32-bit versions:

    • Microsoft Windows 10

    • Microsoft Windows 11

OS X

KerioConnect Client for Mac

  • MacOS Tahoe

  • macOS 15 Sequoia

  • macOS 14 Sonoma

  • macOS 13 Ventura

  • macOs 12 Monterey

Microsoft Outlook

  • MS Outlook Version 15

  • MS Outlook Version 16

Connect Microsoft Outlook 2016 for Mac to Kerio Connect natively. No plugin needed.

WEB BROWSERS

KerioConnect Client

  • Internet Explorer 11 and Edge

  • Firefox 23 and higher

  • Safari 9 and higher

  • Google Chrome 31 and higher

MOBILE DEVICES

Mobile devices which support IMAP, POP3, CalDAV, CarDAV, EAS, EWS

Kerio Exchange Migration Tool

  • Installs on Windows Server 2008 R2 (64-bit) and above.

  • Migrates data from Microsoft Exchange 5.5 (SP4), 2000 (SP3), 2003 (SP2), 2007 (SP1), 2010 (SP2), 2013, 2016

Requires Microsoft Outlook 2007, 2010, 2013, 2016, 2019, 2021

 

Kerio IMAP Migration Tool

  • Windows Server 2008 R2 and higher (64-bit), including Windows Server 2022

  • Supports migration from Exchange Server 2019 On-Premise

  • Windows Server 2003 SP1 (32-bit), Windows Server 2008 (32-bit)

  • Linux (32-bit, 64-bit)

  • OS X 10.8 Mountain Lion and higher