Error : MailEnable Authentication Failed Unknown or Disabled User! Try Again

Error : MailEnable Authentication Failed Unknown or Disabled User! Try Again

  1. Bhawani Singh
    While making attempt to login to web mail sometimes Error : 'Unknown or Disabled User!' occurs. There are various reasons that cause this error, all these causes as well as solutions are described in the following text.

    Reasons and Solutions :

    1. The most common reason is that the username or Password is incorrect.

    Solution : Recheck the Username and Password, Reuse it Carefully. Always use full email address as a username like username@domainname.com. If you use only username to login then it shows the error.

    2. The Account which the user wants to use is disabled in the “MailEnable” Administration Program.

    Solution :
    • Login to windows server.
    • Click on “MailEnable Administrator”.
    • Under messaging manager tab, click on “Post Offices”.
    • Here click on the username and right click on user to Enable or Disable user.
    3. The IME_ADMIN Account not has the correct set of permissions to access the following directory C:\Program Files\Mail Enable\CONFIG directory as well as its Subdirectories.

    Solution : Find C:\Program Files\Mail Enable\CONFIG Directory, Right Click on the particular directory and give full control to this directory as well its subdirectories to the IME_ADMIN Account.

    4. Invalid Credentials caused by an incorrect Migration to a Third Party Database. (Applicable Only to Enterprise Edition)

    Solution : Revert it back to the tab delimited files and then correctly perform the migration again to the database.