- Plesk 12.5 for Windows
Subscription has limited max mailbox quota according to service plan. The
limit is set for a mailbox at
Subscription - example.com - Mail - email@example.com - Mailbox quota
. After migration quota is set to "unlimited" in Mail Enable on destination server. Plesk GUI shows quota properly.
Software issue #PMT-2780
Solution will be implemented in further issues of Plesk. Make sure to install latest updates.
As workaround run the following command on destination server: