Learn how to fix the “MailEnable Unknown or Disabled User“ error. Our Windows Support team is here to help you with your questions and concerns.

MailEnable Unknown or Disabled User

If you have been running into the ‘Unknown or Disabled User!’ error, it can be both frustrating and perplexing.

Worry not, our experts are here to help. Today, we will take a look at how to fix this solution.

Troubleshooting

1. Incorrect Account or Password

   In this case, the account credentials were entered incorrectly, leading to failure.

   We can easily fix this by double-checking the username and password. Always use the full email address as the username and verify that the password is correct.
2. Disabled Account

   If the account used for authentication has been disabled within the MailEnable Administration program, we will get an error message.

   So, enable the account by accessing the MailEnable Administrator. Then, head to the Messaging Manager tab, choose the Post Offices section, and enable the user. Alternatively, make sure the mailbox is active and enabled within the Administration Program.
3. Incorrect Permissions

   If the IME_ADMIN account lacks the correct permissions to access the MailEnable configuration directory and its subdirectories.

   We can fix this by verifying that the IME_ADMIN account has full control over the MailEnable configuration directory and its subdirectories using Windows Explorer.
4. Webmail Disabled

   If the Webmail access is disabled for the user’s mailbox, we will get the error message.

   We can fix this by enabling webmail access for the mailbox in the MailEnable Enterprise by making sure the webmail service is enabled for the mailbox and post office.
5. Password Changes Outside of Plesk

   We will run into the error if password changes made outside of Plesk are overwritten during upgrades or repairs.

   Avoid this by updating the mailbox password via the Plesk UI to synchronize it with the Plesk database. Go to the affected mailbox in Plesk, enter the password, and apply the changes.

By following the steps above, we will be able to troubleshoot and resolve authentication issues in MailEnable.

Let us know in the comments if you need further help.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

In brief, our Support Experts demonstrated how to fix the “ MailEnable Unknown or Disabled User” error.