Since we have migrated to Exchange 2007 many users in our organizationhave been getting synchronization errors each time Outlook opens. The following is the error that is received. 9:21:33 Synchronizer Version 12.0.4518 9:21:33 Synchronizing Mailbox Name 9:21:33 Synchronizing Hierarchy 9:21:34 Synchronizing local changes in folder 'Inbox' 9:21:34 Uploading to server 9:21:34 3 view(s)/form(s) updated in online folder 9:21:34 Synchronizing server changes in folder 'Alert Manager' 9:21:34 Downloading from server 9:21:34 Synchronizing server changes in folder 'Responses from Training' 9:21:34 Downloading from server 9:21:34 Synchronizing server changes in folder 'Deleted Items' 9:21:34 Downloading from server 9:21:34 Error synchronizing folder 9:21:34 [8004010F-501-8004010F-0] 9:21:34 The client operation failed. 9:21:34 Microsoft Exchange Information Store 9:21:34 For more information on this failure, click the URL below: 9:21:34 http://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=8004010f-501-8004010f-0 9:21:34 Done 9:21:38 Microsoft Exchange offline address book 9:21:38 Download successful Most articles that I have read point to issues on the client side. However, this sync error shows up on so many clients I am convinced that the issue resides on the server end.

I get the same thing except we are running Exchange 2003 SP2 and Office 2007 SP1.

Do you have autodiscover properly configured? http://technet.microsoft.com/en-us/library/bb332063.aspx

Hi anything new about this error ? thanks