- Plesk for Windows
Unable to change passwords for forwarding mail accounts.
Plesk bug #PPPM-7070 , which will be fixed in one of the future Plesk updates.
Currently, it is impossible to change passwords for mail accounts without the mailbox via Plesk.
As a workaround, temporarily enable mailbox for the account in Domains > example.com > Email address > email@example.com > check Mailbox .