Kofmsp.dll Jun 2026

Users typically encounter this file through a specific error message when opening Outlook:

If you are seeing errors related to this file, it usually means your Outlook is having trouble talking to your Kerio Connect mail server. Here is a deep dive into what this file does, why it fails, and how to fix it. What is kofmsp.dll? kofmsp.dll

Look for the or "Download Tools" link on the login page. Download and run the installer as an Administrator . 2. Clear the KOFF Cache Users typically encounter this file through a specific

Outlook's Messaging Application Programming Interface (MAPI) may block the DLL if it perceives it as potentially harmful or incompatible. support.kerioconnect.gfi.com How to Fix the Error Reinstall Kerio Outlook Connector: Look for the or "Download Tools" link on the login page

Warnings that the MAPI provider DLL "might be harmful to your system" (often a security flag in newer Outlook builds). Troubleshooting & Fixes 1. Reinstall Kerio Outlook Connector (KOFF) The most effective solution for a missing or corrupted kofmsp.dll is a clean reinstallation: : Go to the Control Panel Programs and Features and remove "Kerio Outlook Connector (Offline Edition)". Clear Cache : Delete the local app data folder: C:\Users\*username*\AppData\Local\Kerio\Outlook Connector

Alternatively, click and delete the profile that is triggering the error, then create a new one. Reinstall Kerio Outlook Connector: