Exchange global address not updating validating forms with
To solve this issue, you need to do the following steps.Start Adsi Edt (be careful with this change) Go to default Naming Context Microsoft Exchange System objects Open the properties of the objects which gave the warning in the Power Shell message.In general, Outlook will automatically update the Offline Address Book (OAB) for Exchange accounts once every 24 hours.
In that case, you can completely reset it by deleting the files making up the OAB or by recreating your mail profile.
However sometimes in large complex organisations we have a situation where a new joiner joins and their colleagues want to email them immediately, but they don’t appear in Outlook for them so they call the Helpdesk “Why isn’t Joe Bloggs in the GAL??
” Well, the truth of the matter is that our new joiner Joe is in fact , an update to the Address Book won’t become available to the user until about 48 hours after the change.
You can force an OAB download in Outlook through Send-Receive settings.
The disconnect is probably somewhere along those lines. The client computers using Outlook 2010 had everything correct earlier today in the address book. Now, just a couple of hours later, all of the clients are pulling down an "old" version of the address book, which includes previously deleted AD users and only half of the new users that were created.