Word could not send mail because of mapi failure

The infamous "MAPI failure" error!

The "Word could not send mail because of MAPI failure" error typically occurs when Microsoft Word is unable to connect to the Microsoft Outlook email client or the email server using the Messaging Application Programming Interface (MAPI). Here are some possible causes and solutions:

Causes:

  1. Outlook not installed or not configured: Make sure Outlook is installed and configured correctly on your system.
  2. MAPI not registered: MAPI might not be registered correctly on your system. You can try registering MAPI by running the following command in the Command Prompt: regsvr32 mapi32.dll
  3. Outlook profile issues: Check if your Outlook profile is set up correctly. You can try creating a new Outlook profile or repairing the existing one.
  4. Email server issues: The email server might be down or experiencing issues. Try sending an email using Outlook to see if the issue is specific to Word or a general email issue.
  5. Word add-ins or plugins: Some Word add-ins or plugins might be causing the issue. Try disabling all add-ins and plugins to see if the issue resolves.

Solutions:

  1. Check Outlook connectivity: Ensure that Outlook is connected to the email server and that you can send and receive emails using Outlook.
  2. Reset MAPI: Try resetting MAPI by running the following command in the Command Prompt: net stop mapi followed by net start mapi
  3. Repair Outlook: Try repairing Outlook by running the Outlook Repair tool (available in the Control Panel).
  4. Check email server settings: Verify that your email server settings are correct and that you can send and receive emails using Outlook.
  5. Disable Word add-ins: Disable all Word add-ins and plugins to see if the issue resolves.
  6. Update Word and Outlook: Ensure that both Word and Outlook are up-to-date with the latest patches and updates.
  7. Reinstall Word and Outlook: If none of the above solutions work, you may need to reinstall Word and Outlook.

If none of these solutions work, you may want to seek further assistance from Microsoft Support or a professional IT expert.