They problem most likely is the mail server is having problems talking to the domain controller with the GC rights. You might want to check to see if that is the problem. J -----Original Message----- From: Mark Budman [mailto:mbudman@xxxxxxxxxxxx] Sent: Thursday, May 23, 2002 11:46 AM To: [ExchangeList] Subject: [exchangelist] Problems - Exchange 2000 Enterprise http://www.MSExchange.org/ - Re-Vamped! Our organization is running Exchange 2000 enterprise Edition with service pack 1. We are having a problem at various times where the global address book in unavailable for some users (usually seems to be during peak usage). This problem is intermittent, and can affect one ,a few, or several users. Our configuration is as follows: One server, Dell Power Edge 2500 PIII 900 with 1 Gig RAM 200 mailboxes (users) Client - Outlook 2000 Email Access: Microsoft Exchange Server (data is on Exchange Server) Message Store size : 13 gig Could this be a problem with the size of the mailbox message store? Any suggestions / comments would be appreciated. Regards, Mark ------------------------------------ Mark Budman Systems Engineer Devry College of Technology 5860 Chedworth Way Mississauga, ON L5R 3W3 mbudman@xxxxxxxxxxxx (905) 502-5193x6235 / (800) 249-5777 ------------------------------------ ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: jasonj@xxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')