Exchange 2007 - Additions & Deletions not in Offline GAB

Network has multiple Windows 2008 R2 server, one running Exchange 2007 in a domain. Workstations are all in the domain running Outlook 2007, 2010 or 2013.
As I delete users and add new users in Exchange, the offline global address book never reflects the changes. I've actually found the folder on a Workstation where it's stored for Outlook and deleted the file. They new file is downloaded and shows the deleted mailboxes and none of the new mailboxes.

I've verified the deleted users are gone from AD and their mailboxes are deleted from the Exchange console. Full backups run nightly with a 14 day mailbox retention period.

The new users and deleted user activity only shows up in outlook under All Users. Any idea why?
LVL 25
Tony GiangrecoAsked:
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Amit KumarCommented:
Try generate Offline address book on mailbox server and closely monitor Event viewer if there is any warning or error, share those event details here.

If there is nothing try creating new offline address book and check.
Tony GiangrecoAuthor Commented:
I just checked the application log in event viewer and found this message generated a few minutes ago. It appears to be about the public folder db which we don't use. After researching, it mentions the db was not mounted. when I go into the Exchange console, it shows it's mounted.

OALGen encountered error 80004005 while cleaning the offline address list public folders under /o=xxxxxxxx/cn=addrlists/cn=oabs/cn=Default Offline Address List.  Please make sure the public folder store is mounted and replicas exist of the offline address list folders.  No offline address lists have been generated.  Please check the event log for more information.
- Default Offline Address List
Tony GiangrecoAuthor Commented:
Here is another error that just came up in event viewer. I don't know if it's part of this problem or not.

Process STORE.EXE (PID=8800). Exchange Active Directory Provider failed to obtain an IP address for DS server, error 11004 (WSANO_DATA (The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for.)).  This host will not be used as a DS server by Exchange Active Directory Provider.
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Tony GiangrecoAuthor Commented:
I just found something that I find unusual.

In the Exchange console, If I expand the menu on the left side and expand the Server Configuration, I see the three mailbox databases: Exec, Assistant and Public folders.

If I select properties on the Public Folders, it has a replication tab. I checked it and changed the replication interval to none sine we don't use public folders.

I checked properties on the Exec and Assistant DB's and they don't have a replication tab.

Under Organizational configuration, Mailbox, Offline Address book tab, i noticed the All contacts list was the only list included. I just added All Users to it. I'll check tonight to see if that helps.
Amit KumarCommented:
If you don't have any user is using Outlook 2003 then remove Public folder distribution from offline address book.

When you will see properties of OAB it will show you two distribution method one is Public Folder and second is Web. So for new Outlook clients Public folder distribution is not required, only below than Outlook 2003 versions need Public folder method.

If you select both method then check PF is mounted or not.

once OAB is generated successfully, please restart MS Exchange File Distribution service on all CAS servers.
Tony GiangrecoAuthor Commented:
I checked the offline address book on the server and it is accurate. I need to check it on a workstation/ that's where the problem was found. i'll be in the office today to verify it.

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Tony GiangrecoAuthor Commented:
After further investigation, I found an invalid path in the Exchange settings for the GAB. After correcting it, the GAB regenerated and was sent out to clients properly.

Because of this, I'm accepting my suggestion and closing with no points.

I appreciate the suggestions offered.
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