Forgotten Plesk mailbox password? Plesk mailbox password recovery guide.
If you have forgotten a Plesk mailbox password on Linux servers you can recover the login details by running the following via SSH.
All to be entered on one line!
mysql psa -uadmin -p`cat /etc/psa/.psa.shadow` -e
"@",domains.name) as address,accounts.password from mail,domains,accounts where mail.dom_id=domains.id and mail.account_id=accounts.id order by address;