This document will help people that using eTrust Admin Option 2000 Guide installed Exchange agent on an Exchange Front-End Server that gets the error "Access Denied" when trying move a Exchange Account using eTrust Admin Gui from an Exchange Storage Group.
"eTrust Admin Microsoft Exchange 2000 Option Guide" refers in Chapter 2, page 13, under step "2 - Update the CAM and CAFT Service Logon Account " session:
"By default, the CAM and CAFT Service is started by the system account when you install the Remote Agent. eTrust Admin needs this service to be started by an account that has administrative rights in the domain; therefore, you must change the account that starts this service."
Add the Domain User inside of Local Administrator group. This will solve the "access denied" error.