Hi everyone im new to this so please be nice, Im also new to exchange and am currently setting up a network with 2000 small business server with the exchange compenent installed. I am setting up ARCserv backup for SBS and need it access and see all user mailboxes. I realise that some administration groups have the the deny permission applyed to them and you must only be a member of the exchange domain servers group to have full access to them, however i have created a user with just that and i still dont have full access to everyones mailbox's. I read somewhere that you must reboot the exchange server for the dc to replicate the changes but i think this is false. Is there anyway around this or am i doing something wrong ? Any help much appreciated Michael