Fix “Kerio Outlook Connector Unable to Synchronize a Message” Issue!

Admin | Email Conversion email migration How to's Technology Windows | 6 minutes read | Last updated on February 9th, 2023,
kerio outlook connector unable to synchronize a message

Are you facing a similar kind of an error and looking for a solution to resolve this Kerio Outlook Connector synchronization conflict? Don’t worry, you are not alone! There are many users too, who are troubled with Kerio Outlook Connector Unable to Synchronize a Message error and want a quick solution to resolve the same. Follow this write up till the end where we have tried to provide you with the best possible methods to resolve these errors.

To establish connection between MS Outlook and Kerio Connect, it is essential to have Kerio Outlook Connector installed on users’ system. The program installs and loads various dynamic-link libraries into Outlook. The connector uses MAPI interface to manipulate Outlook to look like a native Exchange Connection.

While working with Kerio Outlook Connector, sometimes it happens that Outlook starts hanging and it ultimately leads to the application crashing. There may be several reasons for Outlook getting hanged or crashed. E.g. improper configuration of MS Outlook application, corrupted Outlook profile, incompatible add-in programs creating problems with Outlook Connector, Antivirus programs interrupting the communication flow between client and server etc.

Now that we know the various reasons for Outlook Connector crashing, let’s find out the methods to resolve them, in the upcoming section of the blog.

How to Resolve Outlook Crashing Error When using Kerio Outlook Connector

Keep Yourself Up To Date

First of all, ensure that your Windows OS, Outlook application and Outlook Connector have all the updates and patches properly installed.

Follow these steps to check the status of :

  • Operating System : Go to Windows Update and follow the prompts
  • Outlook Application : Go to Office Update and follow the prompts
  • Outlook Connector : Check your version number by going to Help >> About Kerio Outlook Connector. Compare this version to the versions available at Kerio MailServer download page. Download and update if any current version is available.

Check Outlook Profile and its Configuration

  • The Outlook profiles are the major cause of Outlook getting hanged or crashed. You can resolve this issue by creating a new profile. Follow these steps for creating a fresh Outlook Profile :
  • Open Control Panel >> Mail
  • Tap open “Show Profiles” to view the list of all current profiles
  • Under “When starting Microsoft Office Outlook, use this profile”, choose the Prompt for a profile to be used option.
  • Tap on “Add” for creating a new user profile. Then, follow the subsequent steps and create account of Additional Type, KerioMailServer
  • Ensure that the “Default Delivery Location” is set to Kerio Outlook Connector Store. Note that this step is important for proper functioning of Kerio Outlook Connector.
  • Complete the account using all the information that you earlier used for creating former Outlook Connector accounts
  • It is advised not to create any additional POP3 or IMAP Accounts in the current profile.

Note : When you create a fresh Outlook profile, you will not lose any email, contacts or calendar information of the original profile as it is still available. Only your profile specific settings (like default view, distribution lists, sorting options etc.) will be missing in the newly generated profile.

Antivirus and Firewalls

Although Antivirus programs and firewalls provide security to the system, but they can also change or delete packets, redraft files on the hard disk or change the memory of currently running applications. All these issues can create problems for MS Outlook, which is very common. Therefore, for proper functioning of the Outlook application, you are required to disable any antivirus and personal firewall programs.

AVG Antivirus program is known for causing problems with MS Outlook and  Kerio Outlook Connector. You are required to disable the email scanning section of the program for proper working of Outlook. Once this is done, the systray icon will then change to grey color, on most AVG editions.

Disable Plug-ins for Outlook

Outlook Plug-ins or Add-Ins can create conflicts with Outlook Connector. Therefore, you need to disable these plug-ins for proper working of Kerio Outlook Connector. Follows these steps for the same :

  • Open Outlook >> Tools >> Options >> Other >> Advanced Options
  • Tap on Add-in Manager. Uncheck all options excluding “Kerio Outlook Connector UI Extensions”. Then hit OK button.
  • Now tap on COM Add-Ins and ensure that there is only “Kerio Synchronization Add-in” option showing

Other Reasons

Other reasons include the excessive memory usage by The Google Desktop Search which ultimately hangs the Outlook Connector. If this is the problem creator, then you need to uninstall it.

Expert Method to Export Kerio Hosted Mail to Outlook Directly

If all of these methods fail to resolve your “Kerio Outlook Connector unable to synchronize a message” issues, then there is a workaround for you that will eliminate the need for Kerio Outlook Connector altogether. Use a professional third-party utility that will help you in migrating your Kerio Hosted Mail to MS Outlook Directly. CubexSoft Kerio Email Backup Tool is an expert utility that provides direct solution to convert Kerio mailboxes to MS Outlook 2019, 2016, 2013, 2010, 2007 and 2003. The utility is simple to use and is handy for even non-technical users.

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Steps by Step process to Move Kerio Connect mailboxes to Outlook

  • Download, install and launch the software on your Windows PC
  • Choose Kerio Hosted Mail from the listed Email sources
  • Enter your Kerio Server Login details and hit on Login button
  • The tool will display the list of all user folders on its left pane. choose the required folders by selecting their respective checkboxes.
  • Now under Select Saving Options drop down menu, choose PST as the desired option.
  • Choose required sub-options and destination location to save output files
  • Next, under Filter options tab, select required filters as per your requirements and move back towards the backup tab
  • Now hit on Backup button to start the Kerio to Outlook Export process
  • The software will start the process as instructed and also displays its live status report. On successful conversion, a new message window will pop-up showing the “Conversion completed successfully” message.

Export Kerio Connect Mailboxes to MS Outlook

If you have a backup of Kerio Connect mailboxes on your local hard drive, then you can also use Kerio Converter that will help you export Kerio Connect mailboxes to MS Outlook PST file. The tool converts complete Kerio mailbox data including emails, contact, calendars, notes, tasks etc. to Outlook 2019, 2016, 2013, 2010, 2007 and 2003. The tool also supports migration of multiple Kerio user mailboxes to Outlook in batch. You will also get the option of creating separate PST file for each Kerio user mailbox, for easy management.

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Step by Step Process to Download Kerio Local Server Mailboxes to PST

  • After downloading, install the software on your system
  • Now add Kerio mailboxes using Add Files and Add Folders options
  • (Note : You can also choose “I am converting multiple users” option for converting multiple Kerio user mailboxes to Outlook in batch)
  • The software will show the folder in tree structure alongwith their respective checkboxes. Choose the required folders and tap on Next
  • Now choose PST as the desired output option. Set required sub-options, destination location and advance filters to move selective data. Now hit on Convert button
  • The tool will start the Kerio to PST migration process and displays its live status report. On successful conversion, it will open a new window showing the “Process completed successfully” message.

Conclusion

In this blog post we have tried to help users fix “Kerio Outlook Connector unable to synchronize a message” issues. There are many reasons for occurrence of this Kerio Outlook Connector synchronization conflict. Whatever be the reason, users are also provided with the help solution for their problems. The suggested solutions as handy for both technical and non-technical users alike and are also available as FREE demo edition. Try the demo edition first and thoroughly evaluate the software working procedure before buying the licensed edition. The free trial tool will also permit to move first 25 items per Kerio folder to Outlook, absolutely free of charges.