Hi!
You can easily find out via Zimbra Administration Console..
Just put the following line in the search box:
Code:
(zimbraChildAccount=id-of-child-account)
To obtain the child account's ID select it in the Admin Consolle and press Edit (it's on the top-left) or run from the command line:
Code:
zmprov ga user@domain.com | grep zimbraId
Have a nice day,
Cine