Backup restore fails: An error occurred during mail account creation: Unable to create user to mailname. The password should be specified

Symptoms

• Backup restore fails:

  PLESK_ERROR: Execution of C:\\webservices\\plesk\\bin\\mail.exe --create login@example.com -mailbox false -mbox_quota -1 -forwarding true -cp-access true -forwarding-addresses add:forwardhere@example.com -ignore-nonexistent-options failed with return code 1.
  Stderr is
  An error occurred during mail account creation: Unable to create user to mailname. The password should be specified.

• Migration fails with the error:

  PLESK_ERROR: Unable to create mail account 'john.doe@example.com' in subscription 'example.com': Command execution failed on the local server with non-zero exit code. command: /usr/local/psa/bin/mail --create john.doe@example.com -mailbox true -passwd '' -cp-access true -ignore-nonexistent-options exit code: 1 stdout: stderr: An error occured during mailname creation: Unable to create user to mailname. The password should be specified.

• Mail accounts with Control Panel access but no Mailbox are not restored.

Cause

This issue has been considered as software issue with ID #PPPM-4855 that was fixed in Plesk Onyx.

Resolution

Upgrade to the latest Plesk version .

Workaround for the migration if the upgrade of the target server cannot be considered:

1. Connect to the server using SSH.

2. Download and start script:

   # wget https://plesk.zendesk.com/hc/article_attachments/115005789254/script.sh
   # chmod +x script.sh
   # ./script.sh

3. Restart migration