I already added a user to the recipient management group so he can create mailboxes It did not work can i have a step by step guide to get this working

It should be as simple as that. Use the ECP to check and assign again.Sukh

is it possible for a user with create recipient mailbox to create mailboxes for users over the web link or we must install emc

They could use powershell remotely but if that is not an option then the EMC could be installed on their machines or a management server. Steve

You can create new DL but no mailboxes, that's via the EMC/EMS.Sukh

What is the exact error, you may be runing into an AD permission issue and not an Exchange permission issue. Try adding the user into the AD account operators group as well.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com