When accessing mailbox existing in Plesk via the MailEnable webmail interface, the following error is provided:
Unknown or Disabled User!
Plesk may be recently upgraded from Onyx to Obsidian.
plesk repair mailcommand may be recently executed on the server.
The password for the mailbox was previously changed from outside Plesk:
- using the MailEnable webmail interface;
- via MailEnable Admin console.
Plesk forcibly replaces all passwords with the ones stored in the
psa database during the upgrade/execution of
plesk repair mail command. Thus, changes applied from outside are rewritten.
Update password via Plesk UI:
- Log into Plesk.
- Navigate to the affected mailbox in Domains > example.com > Mail tab > Mail Accounts > [email protected].
- Provide the required password in the Password and Confirm password fields:
- Apply changes.