my company migrate to Exchange 2010 from Exchange 2003 2 weeks ago, the Exchange 2010 is on a brand new server. We were using moving mailbox method to transfer all mailbox from Exchange 2003 to Ex2010.
After migration, I found that all Outlook 2003 and Outlook 2007 who are using Cache Mode that is not able to sync with the OAB. They can see the GAL but whenever I download the address book or click Send and Receive, I got the following error.
I did some research from internet and I tried those recommendation but no luck.
I have done all belows
- create a new OAB
- make sure all Outlook 2003 is using SP2 or later
- in Address Book Distribution in Ex2010, all client type are checked and supported.
- web service and public folder are enable in Ex2010