New Kerio Connect Android App Available Now

Kerio Connect Sync app for Android devices

The Kerio Connect Sync tool synchronizes users’ calendars, contacts, tasks, and public folders. Available for free in Google Play, Kerio Connect Sync ensures that users have immediate and always up-to-date access to their accounts on Android devices.

Read more about Kerio Connect Sync in our Knowledge Base: Kerio Connect Sync application for Android devices

Support for the Mail and Calendar apps on Microsoft Windows 10

Users can synchronize their Kerio Connect accounts with the Mail and Calendar apps on Microsoft Windows via Exchange ActiveSync.

Read more in our Knowledge Base: Configuring Mail and Calendar on Microsoft Windows

New in Kerio Connect 8.5

Kerio Connect Client calendars

Agenda view has been added to Kerio Connect Client calendars. Users can also set the time required to travel to an event location so that they can be notified before they need to leave. All calendar views can also now be printed.

Read more about the calendar improvements in our Knowledge Base: Using calendars in Kerio Connect Client

Pinning Kerio Connect Client to the Windows taskbar

With Internet Explorer 9 or later, you can pin the Kerio Connect Client tab to the taskbar for immediate access.

Read more in our Knowledge Base: Pinning Kerio Connect Client to the Windows taskbar

Improved filters in Kerio Connect Client

Filtering rules in Kerio Connect Client have been redesigned to provide a better experience. Users can now use the Sieve language to create rules.

Read more about filters in our Knowledge Base: Sorting email messages in Kerio Connect Client

Improved security

Several important security improvements have been incorporated in this version of Kerio Connect. OpenSSL library has been updated to version 1.0.1m. Server self-signed SSL certificates and certificate signing requests generated by the server are now signed with SHA-256 signature to comply with the enhanced SSL certificate security validation in some Internet browsers.

Configuring SSL/TLS

You can now manually change various SSL/TLS settings in the configuration file in Kerio Connect. Also, the SSLv3 protocol is now disabled by default.

Read more in our Knowledge Base: Configuring SSL/TLS in Kerio Connect

Personalizing the Kerio Connect Client login page

Administrators can now create a custom login page for Kerio Connect Client by adding graphics and text, and changing colors. For each domain, admins can also set up a new logo for the Kerio Connect Client interface.

Read more about customization in our Knowledge Base: Customizing Kerio Connect and Customizing the Kerio Connect Client login page

Support for Exchange ActiveSync 14.1

Kerio Connect now supports Exchange ActiveSync version 14.1. Users can synchronize their notes, use the free/busy setting when creating events, and see the reply/forward flags in their messages.

Exchange ActiveSync account in Outlook 2013

Kerio Connect now supports the Exchange ActiveSync accounts in Outlook 2013. However, there are many limitations to its usage.

Read more in our Knowledge Base: Creating Exchange ActiveSync account in Outlook 2013

Kerio Connect Multi-Server

Kerio Connect Multi-Server has been updated with more features. You can now upgrade from earlier versions of Kerio Connect, users can share folders across all servers, the Zabbix monitoring server role has been added, servers can now share the SpamAssassin database, and much more.

Read more about Kerio Connect Multi-Server in our Knowledge Base: Kerio Connect Multi-Server

Changes in System Requirements

Added support

  • Microsoft Windows 10 Mail and Calendar (Kerio Connect 8.5.2 and newer)
  • Edge browser on Microsoft Windows 10 (Kerio Connect 8.5.2 and newer)
  • Microsoft Office for Mac 2016 (Kerio Connect 8.5.2 and newer)
  • iOS 8.3 and 8.4
  • Microsoft Outlook 2013 Exchange ActiveSync accounts
  • Debian 8 64-bit
  • Exchange ActiveSync 14.1

Discontinued support

  • Microsoft Entourage 2004 and 2008

For more details, read Kerio Connect technical specifications.


When upgrading to Kerio Connect 8.5, users must re-create their mobile device accounts to benefit from the Exchange ActiveSync 14.1.

When upgrading from Kerio Connect 8.4.0 and later, Sophos Live Protection is enabled by default. When upgrading from any older version, administrators must enable this feature manually.

Release history

The Kerio Connect release history with a full list of changes is available at


To discuss the new features visit the Kerio Connect forum:

To give feedback for the new features, see Providing feedback for Kerio products.

Open Source Software Notice

Kerio Connect includes open source software. The complete open source code packages of these components are available in Kerio Software Archive at

Legal Notice

Microsoft®, Windows®, Windows Mobile®, ActiveSync®, Outlook®, Internet Explorer® and Entourage® are registered trademarks of Microsoft Corporation.

Firefox® is registered trademark of the Mozilla Foundation.

Apple®, Safari™, iPhone™ and iPad™ are registered trademarks or trademarks of Apple Inc.

iOS® is registered trademark of Cisco Systems, Inc.

Linux® is a registered trademark of Linus Torvalds.

Sophos® is a registered trademark of Sophos Plc.

Debian® is a registered trademark of Software in the Public Interest, Inc.

Ubuntu™ is a trademark of Canonical, Ltd.

Red Hat® and Fedora™ are registered trademarks or trademarks of Red Hat, Inc.

Palm®, Treo™, and Pre™ are registered trademarks or trademarks of Palm, Inc.

Google™, Nexus One™ and Android™ are trademarks of Google Inc.

DROID™ is a trademark of Lucasfilm Ltd. and its related companies.

Motorola® is registered trademark of Motorola, Inc.

BlackBerry® is registered trademark of Research In Motion Limited.

XPERIA™ is a trademark or registered trademark of Sony Ericsson Mobile Communications AB.

Samsung and Galaxy Tab are trademarks of Samsung Electronics Co., Ltd. and/or its related entities.

ASUS Trademark is either a US registered trademark or trademark of Asustek Computer Inc. in the United States and/or other countries.