After a domain is renamed, the control panel user logins and email addresses still include the old domain name.
This issue will be addressed in future updates for Parallels Plesk Panel.
1. Download and unzip
For Windows: Put
%plesk_dir%\bin and make sure that the user psaadm can read and execute it.
For Linux: Put
/usr/local/psa/bin and make it executable (permissions 755).
2. Create two event handlers in Tools & Settings → Event Manager:
Actions: "Website updated" and "Domain updated"
%plesk_dir%\bin\fix_users.cmd <old_domain_name> <new_domain_name>
Actions: "Default domain (the first domain added to a subscription/webspace) updated" and "Domain updated"