Couldn t send mail because of mapi failure

The dreaded "MAPI failure" error!

MAPI (Messaging Application Programming Interface) is a protocol used by Microsoft Outlook to communicate with email servers. When you encounter a "MAPI failure" error, it means that Outlook was unable to connect to your email server using MAPI.

Here are some common causes and solutions to help you resolve the issue:

  1. Outlook configuration issues:
    • Check your Outlook profile settings to ensure they are correct. You can do this by going to File > Account Settings > Manage Profiles.
    • Make sure your email account is set up correctly in Outlook. You can do this by going to File > Account Settings > Account > Change.
  2. Email server issues:
    • Check your email server's status to see if it's experiencing any outages or maintenance.
    • Try sending an email using a web-based email client (e.g., Outlook Web App, Gmail) to see if the issue is specific to Outlook.
  3. MAPI settings:
    • Check your MAPI settings in Outlook. You can do this by going to File > Options > Advanced > General.
    • Ensure that the "Use MAPI" option is enabled.
  4. Outlook updates:
    • Check if you have the latest version of Outlook installed. Updates often resolve MAPI-related issues.
    • Try uninstalling and reinstalling Outlook to start with a clean slate.
  5. Third-party add-ins:
    • Disable any third-party add-ins that may be interfering with MAPI. You can do this by going to File > Options > Add-ins.
    • Try restarting Outlook in safe mode (hold the Ctrl key while launching Outlook) to disable all add-ins.
  6. Windows updates:
    • Ensure that your Windows operating system is up to date. Updates often resolve MAPI-related issues.
  7. Re-register MAPI:
    • Try re-registering MAPI by running the following command in the Command Prompt (as an administrator):
      cd %windir%\system32
mapi32.exe /reinstall
  8. Reset Outlook settings:
    • Try resetting Outlook's settings to their default values. You can do this by going to File > Options > Advanced > Reset.

If none of these solutions work, you may want to try seeking assistance from your email provider's support team or a Microsoft support specialist.