Hello, I have installed a new Exchange 2007 server, with hub transport, mailbox and client access roles installed on it. The new server is additional to an existing Exchange 2003 server. On installing the server, I had an issue that was described here. (problem when starting Transport Service). I changed the account used by this service from NetworkService to domain admin and the service started. I started moving mailboxes whithout problems, but now it seems that no messages are deliverd to the mailboxes. All messages are queued, and the error message there is STOREDRV; mailbox logon failed. I suspect that changing the account used for the Transport service has something to do with it, but when I change it back to NetworkService, it refuses to start. Anyone a clue about how to solve this? Any help is greatly appreciated,Thanks,Tom Tom Van ZeleSynergy Solutions - Belgium

With the help of Support Services, I've found the problem. I've posted the solution as an answer in another thread here. Tom