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Kerio Connect 9.2.9 Build 4540 Patch 1

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Kerio Connect 9.2.9 Build 4540 Patch 1

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, Kerio Connect 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 9.2.9 Patch 1 (April 23, 2019):

  • WebMail Contacts auto-completion is not working for previously created entries
  • Finder is not responding MacOS 10.14
  • Email with attached (Nested) email message not showing in KOFF
  • LDAP-Replication gets only 200 contacts (configurable)
  • Remote images are shown by default (disabled via config)

Homepage –

System requirements:

Windows 64-bit versions:

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

Linux 64-bit versions:

  • Red Hat Enterprise Linux 6, 7, CentOS 6, 7
  • Debian 7, 8
  • Ubuntu 12.04 LTS, 14.04 LTS, 16.04 LTS


  • 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

VMware Virtual Appliance

Kerio Connect VMware Virtual Appliance comes with a pre-installed OS. Works with:

  • Workstation 10, 11, 12
  • Fusion 5, 6, 7, 8
  • Workstation 12 Player
  • vSphere Hypervisor 5.1 and higher


  • Minimal HW configuration (1-20 users):
    CPU 1 GHz 64-bit, 2 GB RAM, 40 GB of free space for message store and backup
  • Recommended HW configuration (20-100 users):
    CPU 2 GHz 64-bit, 4 GB RAM, 160 GB of free space for message store and backup
  • Recommended HW configuration (100+ users):
    CPU 2.8 GHz 64-bit Quad Core, 16 GB RAM, 64-bit OS, 200 GB+ of free space for message store and backup


  • Minimal HW configuration (1-20 users):
    Mac Intel Core2Duo 64-bit, 2 GB RAM, 40 GB of free space for message store and backup
  • Recommended HW configuration (20-100 users):
    Mac Intel Core i5 64-bit, 4 GB RAM, 160 GB of free space for message store and backup
  • Recommended HW configuration (100+ users):
    Mac Intel Core i7 64-bit, 16 GB RAM, 200 GB+ of free space for message store and backup


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

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