Dear Sirs, I have two windows 2003 sp2 servers with Exchange 2003 SP2 installed. Quota message services on server 1 has been working no problem, on server 2 have rpc error. I am using the latest version of quota message services, the service is saying it is running, but when I go to start Quota Maintenance, âRPC error occurredâ I have followed the instruction on other posts and still no joy. I have checked the following Permission for the system account, Quota Messages folder is under the mailbox, the registry is pointing to the right mailbox I created. The only difference between the two servers is server 2 has McAfee group shield running. Any help would be great Regards Garry Ling