restriction of users

[xiao]

hello friends, I want to know if it can and like putting restriction to some users of open-xchange so that single mind can send post office to he himself dominion, that is to say, who if my dominion is example.com single the users “x” “b” and “k” can send post office to any dominion whereas the users “c” “d” and “f” can send single post office to the example.com dominion (the dominion to which they belong).


plisss healp me