Running Exchange 2007 with latest updates minus update rollup 6, the global address list is updating properly except for one aspect. New users and new external contacts show up just fine after nightly OAB rebuilds, but if I change an external contact's email address, it will not show the correct email address in the "Select Names" dialogue box. If I use the contact or get properties on it, the email shows up correctly. It also shows correctly in OWA. I've forced rebuilds, I've restarted the file distribution service, and I've deleted OAB files on the client (Outlook 2007 on a 2008 R2 terminal server, so no cached mode). The closest thread I've found resembling this issue is http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/2bc544c4-60b1-4e7b-a655-7a1f450daccc.

Hi Fehzz, "I've deleted OAB files on the client (Outlook 2007 on a 2008 R2 terminal server, so no cached mode" If you just run Outlook 2007 on a client computer via Online & Cached mode, what's the result? Please also try to change a test mailbox's email address, and the same issue? Please check whether there is any related event log in the Event Viewer.Frank Wang TechNet Community Support

Try this, I had same issue .. Update Default Global address list. => Open Exchange Management Shell. 3. Run command. PS>Set-GlobalAddressList "Default Global Address List" -RecipientFilter {(Alias -ne $null -and (ObjectClass -eq 'user' -or ObjectClass -eq 'contact' -or ObjectClass -eq 'msExchSystemMailbox' -or ObjectClass -eq 'msExchDynamicDistributionList' -or ObjectClass -eq 'group' -or ObjectClass -eq 'publicFolder'))} Let me know if it fails..Nelson N Exchange 2003|2007|2010

Running on a client with cached mode enabled, I'm getting the same result. The changes I made a couple of weeks ago still aren't showing up. I see no related errors in the event logs. After running: Set-GlobalAddressList "Default Global Address List" -RecipientFilter {(Alias -ne $null -and (ObjectClass -eq 'user' -or ObjectClass -eq 'contact' -or ObjectClass -eq 'msExchSystemMailbox' -or ObjectClass -eq 'msExchDynamicDistributionList' -or ObjectClass -eq 'group' -or ObjectClass -eq 'publicFolder'))} I get this: Set-GlobalAddressList : You cannot perfrom the operation on the default global address list object, "Default Global Address List". At line:1 char:22 + Set-GlobalAddressList <<<< "Default Global Address List" -RecipientFilter {( Alias -ne $null -and (ObjectClass -eq 'user' -or ObjectClass -eq 'contact' -or ObjectClass -eq 'msExchSystemMailbox' -or ObjectClass -eq 'msExchDynamicDistrib utionList' -or ObjectClass -eq 'group' -or ObjectClass -eq 'publicFolder'))} + CategoryInfo : InvalidOperation: (\Default Global Address List: ADObjectId) [Set-GlobalAddressList], InvalidOperationException + FullyQualifiedErrorId : 7610CD8B,Microsoft.Exchange.Management.SystemCon figurationTasks.SetGlobalAddressList Thanks for the help! I look forward to your replies.

Had exactly the same issue. Turns out that after updating Exchange with new email address, had to edit attribute in AD for corresponding object to new email address. This only affects External contacts in Exchange and not user mailboxes.

Had exactly the same issue. Turns out that after updating Exchange with new email address, had to edit attribute in AD for corresponding object to new email address. This only affects External contacts in Exchange and not user mailboxes. Hi, That happends when the Mailcontacts has emailaddresspolicyenabled = False ..and when it does (very common) it's important that also the attribute mail (E-mail on the general tab in ADUC) is changed when the ExternalEmailAddress is. These two attributes should always have the same value. To make sure they are, check with: Get-MailContact | ft Name,WindowsEmailAddress,ExternalEmailAddress -AutoSizeMartina Miskovic