Hi About an hour ago, we had an issue where we couldn't move mailboxes between Exchange 2007 servers. The error message was: the address list service on the server Exch2007Mailbox1 is not running. The Exchange server address list failed to respond. I checked Technet forums and the problem seemed to be fixed by restarting the MS Exchange Sys Attendant (SA), which I did and it did fix it! Does anyone know WHY this would fix and it any possible causes?

On Thu, 24 Feb 2011 23:29:36 +0000, Neil4933 wrote: >About an hour ago, we had an issue where we couldn't move mailboxes between Exchange 2007 servers. The error message was: the address list service on the server Exch2007Mailbox1 is not running. The Exchange server address list failed to respond. > >I checked Technet forums and the problem seemed to be fixed by restarting the MS Exchange Sys Attendant (SA), which I did and it did fix it! > >Does anyone know WHY this would fix and it any possible causes? The address list service is a thread within the SA process. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

The Microsoft Exchange Server System Attendant is the Exchange Server core service and it controls the Offline Address Book Generator which is related to Address List service. For more information about Exchange core components, please refer to the following article: http://www.msexchange.org/tutorials/Exchange-Internals-How-Exchange-Core-Components-work-together.html Thanks. NovakPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Any word on possible causes?

in our case we had just updated half of the DCs in the same AD site as the server listed in the error message from 2003 to 2008. When I say upgrade i mean we replaced the DCs.TBrennan