https://www.qnap.com/en/app_releasenote ... oose=qmail
So be aware that this will be another paid model now.QmailAgent 3.0.0
( 2021/04/07 )
[Important Notes]
- Free trial available till 5/31/2021.
- New features are only accessible by admin accounts.
[New Features]
- Create and manage email account backup jobs.
- Restore email accounts from backup jobs and backup files.
- Monitor job activities.
- Backup QmailAgent settings and disaster recovery support.