- Plesk for Windows
How to upgrade MailEnable to a newer version?
- Upgrading MailEnable on Plesk - How to Upgrade MailEnable on a Plesk Platform
- Details about backing up mail server data - ME020024 - HOWTO: How to backup and restore MailEnable configuration and user data
Note: upgrade to Professional or Enterprise version requires a paid license key which should be bought from MailEnable directly. After buying a license key and applying it, the functionality of the upgraded version will be automatically unlocked.