Kofmsp.dll Jun 2026

If you are locked out of your Outlook client because of a kofmsp.dll failure, the root cause usually falls into one of these four technical categories: Trigger Cause Technical Behavior

If you are a user of , you may encounter a frustrating error message referencing kofmsp.dll . This file is a critical component of the Kerio mail synchronization tool, and when it goes missing or becomes corrupted, it can stop Microsoft Outlook from opening entirely. kofmsp.dll

If the DLL is failing due to data corruption, clearing the local mail cache forces Outlook to re-verify the information service wrapper. Go to and click on Mail (Microsoft Outlook) . Click on Email Accounts . Select your KOFF account from the list and click Change . Switch to the Maintenance tab in the window that appears. If you are locked out of your Outlook

"MAPI was unable to load the information service KOFMSP.DLL" Microsoft Learn Common Causes Failed Updates: Go to and click on Mail (Microsoft Outlook)

Find and uninstall it. Restart your computer .

Understanding and Fixing Kofmsp.dll Errors: A Comprehensive Guide

(Note: Change 16.0 to match your active version of Office if you are deployed on older versions) . Reinstalling Kerio Outlook Connector - KerioConnect - GFI