Finally i finished my project. It's a domain administrator for zimbra foss edition. Tested: zcs 6/7/8 foss edition.
Demo link: http://188.8.131.52:81
Demo user: firstname.lastname@example.org
Base language is turkish, i want to add english and perhaps in time the other languages.
* full backup
* domain based backup
* account based backup
* you can set a account for manage multiple domains.
* domain owner can create subdomains
*modify account passwords
*show account mailbox
Also in panel you can create domain, set COS for any domain.