How to Create Admin account with limited access:
Create a distribution list for the admins and select the option to not receive email and hide in GAL. like zimbra-group@server.lan
To create admin user:
[zimbra@mail conf]$ zmprov ca zimbra-admin@server.lan ZimAdn@
b8a8430e-a42e-456d-9e88-0c227bc845bd
To enable distribution list the group
[zimbra@mail conf]$ zmprov modifyDistributionList zimbra-group@server.lan zimbraIsAdminGroup TRUE
[zimbra@mail conf]$ zmprov modifyAccount zimbra-admin@server.lan zimbraIsDelegatedAdminAccount TRUE
[zimbra@mail conf]$ zmprov modifyDistributionList zimbra-group@server.lan zimbraAdminConsoleUIComponents accountListView zimbraAdminConsoleUIComponents DLListView zimbraAdminConsoleUIComponents aliasListView zimbraAdminConsoleUIComponents COSListView zimbraAdminConsoleUIComponents saveSearch