How to reset email address password from Plesk panel
Step 1: Steps for resetting the password for any email address
1. Visit the URL http://<your_domain>:8880 or https://<your_domain>:8443 (For SSL) and login
2. Click on the Mail tab from the top menu
3. Click on the email address, you want to reset the password
4. Now type the password on the Password text box and Confirm password or you can also generate the password by Generate button.
(We will suggest to maintain password according to government password policy, the given below link is for your reference:
Now click OK to save changes