Available for:
No Comments
Report about Update or Broken Link

Kerio Connect 9.4.1 Build 6445 Patch 1 by GFI

Kerio Connect 9.4.1 Build 6445 Patch 1 by GFI
Buy Now

Kerio Connect (formerly Kerio MailServer) represents a new generation of mail servers designed for corporate networks. The award-winning, low-overhead alternative to Microsoft Exchange, this Kerio software meets the needs of small and mid-sized business.

It offers unmatched deployment flexibility and broad mobile device support. Business users enjoy support for their favorite email client and Kerio Connect Client via their favorite web browser. Then users can see the presence of colleagues, chat in real-time, organize meetings.

Furthermore you can securely compose richly formatted email. Kerio Connect also provides full support for Outlook (Windows and Mac) and many other IMAP or POP compliant email clients.

Kerio Connect is stable. So you can focus on your business rather than unexpected downtime and recovery. Deployment and administration are simple by design. With low licensing, service and hardware costs, the program delivers measurable business value over other offerings.

BYOD Made Easy

Kerio Connect makes BYOD easy. Supports virtually every mobile device on the market. From iPhones to Android phones to tablets. And this software is so simple to use that end users can configure their own devices without bothering IT.

Secure and Protected Email

You’re protected against hacking and malicious attacks with SSL encryption, S/MIME, anti-spam and anti-virus tools, and more. Automated backup with granular restore options ensure quick and easy recovery from all types of disasters. Server-wide archiving prevents data loss and helps organizations to comply with legal requirements for email retention.

Flexible Deployment

Kerio Connect supports three different deployment options. That let you choose the approach that best fits with your existing IT processes, infrastructure and organization. No matter what option you use, Kerio Connect offers the same great end-user experience, rigorous security, and ease of administration.


Easily install Kerio Connect on your existing hardware, using your favorite host OS or hypervisor. Most versions of Windows Server, Linux and even Mac OS are supported. Or choose the VMware virtual appliance to easily run Kerio Connect side-by-side on the same hardware as your other business applications without worrying about operating system compatibility.


Deploy this modular, multiple server solution for greater scalability and performance in larger organizations and distributed multi-office environments, or in partner-hosted Kerio Cloud environments.

Kerio Cloud.

Use email, calendars, Instant Messaging and benefit from simultaneous updates across your iOS, Android or Windows mobile device.

Over 14 anti-spam layers:

  • DHA (Directory Harvest Attack protection)
  • SpamAssassin (Bayes, Heuristic, and SURBL)
  • Anti-phishing / anti-spoofing
  • RBL (Real-time blacklist servers)
  • Custom whitelists and blacklists
  • SMTP restrictions and more…

Changes in Kerio Connect 9.4.1 Patch 1 (July 4, 2022):

  • HTML formatted emails are displayed as plain text when using KOFF
  • “The RPC server is unavailable” error when receiving certain types of attachments over KOFF

Changes in Kerio Connect 9.4.1 (March 11, 2020):

New Features:

  • Security Vulnerability – Upgrade to Log4j 2.17.1


  • 3CX meeting invitations are causing Kerio Connect to crash
  • Unable to delete emails from public folders with version 9.4
  • Shared folders with non-ASCII characters sync over ActiveSync regardless of preference
  • Cannot search contact by phone numbers in webmail
  • ActiveSync – Timezones are updated incorrectly when events are updated
  • Filename has escaped characters when using Download All attachments in Kerio Connect Client
  • Added support for Content-Security-Policy-Report-Only HTTP Header

Changes in Kerio Connect 9.2.12 (March 11, 2020):


  • Crash with KThreadPool errors macOS
  • Сannot install Kerio Connect Account Assistant in macOS Catalina
  • KEMT | Userlist is empty when using Exchange 2013 and 2016
  • Missing KOFF Account type because of Simplified Account Creation
  • eM Client: When trying to share calendar, an unnamed error pops up
  • Emails duplicated in a mailbox in certain scenarios
  • AV fails to update in macOS
  • Tasks are not synced anymore on iOS 13 with CalDAV
  • KEMT fails to connect to Exchange 2013
  • KOFF Unable to open the second shared folder (after upgrade)
  • KOFF does NOT fully sync Deleted items from shared folders to the server.
  • Kerberos to Active Directory authentication is not working on CentOS from mail client
  • Kerio Connect Exchange – Event invites stripping hyperlinks

Changes in Kerio Connect 9.2.11 (December 9, 2019):


  • KOFF performance improvements for searching items. Benefits mainly x64 platforms
  • Open Java runtime is used for XMPP (repacing Oracle Java)


  • Kerio Connect fails to start if luks.container file is missing
  • Built-in Admin archive folder rights “checkbox” cannot be deactivated in Windows
  • BCC is ignored in emails sent via ActiveSync
  • A calendar invite from iCloud moves to another time
  • Cannot deactivate access to the archive for users
  • Chat is not working in Safari
  • Kerio Connect trims large notes with no warning
  • Delivery/Read receipts are not working with Outlook 2016/2019 Exchange ActiveSync profile
  • eM Client: When trying to share calendar, an unnamed error pops up
  • eM Client: When you want to upload a new distribution list on Kerio, error pops up and the upload won’t be successful. Doesn’t matter if you copy the list or create a new one.
  • Email attachments missing using outlook with KOC
  • GAL photos don’t sync with AD
  • Kerio Connect webmail login form does not contain anti-CFR token (XSS)
  • Kerio Connect compatibility with The Bat! IMAP search
  • Outlook for Mac reverts back change to appointment date from series
  • Private Calendar Event’s attachments are visible to all users
  • Public calendar link broken after renaming calendar via BusyCal (MacOS)
  • Reply messages contain extra strange numbers and characters
  • Report Problem and Technical Support buttons are not working
  • Secure Message signing does not work when the recipient is macOS Mojave Apple Mail
  • The message when an attachment is blocked is not displayed in KOFF
  • Timezone issue for Outlook 365 calendar invites
  • Title for New Contact group, New task, and New note is incorrect
  • When a user clicks to add extra disk space and Resizing Fails error occurs
  • LDAP custom search Filter returns unnecessary results

Changes in Kerio Connect 9.2.10 (July 31, 2019):

  • Problem with sending emails from outlook after update to office version 1903 – 11425.20228
  • Calendar not syncing with Outlook for Windows- Active Sync connection
  • Mailbird client error failed to fetch emails
  • Public folder rights – Invalid value
  • Overview of shared sent items folder displays sender instead of the recipient address
  • Verify your Identity pop up when using webmail over HTTPS
  • Calendar events with Attachments causing issues with Active Sync synchronization
  • Dragging a contact from “To:” field to e-mail body doesn’t work
  • LDAP Search no results when using non-standard fields
  • Digital signature from Kerio Connect Client is not accepted by Gmail
  • KOFF not loading correctly after upgrade to Outlook 1903 – 11425.20228
  • Mailbird hangs during account configuration
  • NMAP shows program name as Kerio
  • Prompt on encryption when there is not enough disk space
  • Drag a contact from To to email body does not work
  • EWS: “DateTimeCreated” property is missing
  • Domain folder rights are showing Invalid value

Homepage – https://www.kerio.com

Supported Operating Systems:

Windows 64-bit versions:

  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2008 R2

Linux 64-bit versions:

  • Red Hat Enterprise Linux 6, 7, 8 and CentOS 6, 7, 8
  • Debian 7, 8, 9, 10
  • Ubuntu 14.04 LTS, 16.04 LTS, 18.04 LTS, 19.04, 20.04


  • macOS 10.16 Big Sur
  • macOS 10.15 Catalina
  • macOS 10.14 Mojave
  • macOS 10.13 High Sierra
  • macOS 10.12 Sierra
  • OS X 10.11 El Capitan
  • OS X 10.10 Yosemite
  • OS X 10.9 Mavericks
  • OS X 10.8 Mountain Lion

Leave a Reply

0 Comments on Kerio Connect 9.4.1 Build 6445 Patch 1 by GFI

Sign In

Welcome! Log into your account

Forgot your password?

Create an account

Sign Up

Welcome! Register for an account

A password will be e-mailed to you.

Password Recovery

Recover your password

A password will be e-mailed to you.