Kofmsp.dll [exclusive] Jun 2026

When this Dynamic Link Library (DLL) file becomes missing, corrupted, or blocked by a Windows or Office update, Microsoft Outlook will fail to boot. Users typically experience abrupt crashes accompanied by the explicit error message: "Cannot open your default e-mail folders. An unexpected error has occurred. MAPI was unable to load the information service KOFMSP.DLL." .

The file's specific role is to act as a MAPI (Messaging Application Programming Interface) provider. MAPI is the protocol Microsoft Outlook uses to communicate with mail servers. When you set up a Kerio Connect email account in Outlook, the Kerio Outlook Connector uses KOFMSP.DLL to handle the connection, synchronization, and management of your emails, calendar events, contacts, and tasks.

If Windows cannot find the physical location of kofmsp.dll , adding its hard path to your environment settings will restore the connection map. Press Win + R , type sysdm.cpl , and hit .

无法启动Microsoft Outlook。无法打开Outlook窗口。无法打开此文件夹集合。出现意外错误。 MAPI无法加载信息服务KOFMSP.DLL。请检查是否已正确安装并配置了该服务。 kofmsp.dll

"Cannot open your default e-mail folders. MAPI was unable to load the information service KOFMSP.DLL."

Always run the installer as an administrator. 2. Clean up Office Installations (Error 1904)

Go back to the Control Panel, click , and completely uninstall Kerio Outlook Connector (Offline Edition) . When this Dynamic Link Library (DLL) file becomes

: It acts as a "service provider" that allows Kofax software to communicate with messaging systems (like email or fax servers).

Run a clean installation using the installer gathered via , then recreate your email account profile. Method 3: Modifying the Windows PATH Environment Variable

Download the latest version of the Kerio Outlook Connector from the GFI support site or your Kerio Connect server. Install the new version and launch Outlook. 2. Create a New Outlook Profile MAPI was unable to load the information service KOFMSP

: If Kofax crashes while trying to send a notification or route a file.

Access your company's Kerio Webmail interface, navigate to the integration or help page, and download the latest version of the installer. Install the package with local administrative privileges. 2. Rebuilding the Outlook Mail Profile