06.18.08
MPS re-working required in HMC4 after Exchange 2007 SP1 installed.
We’ve seen a problem being highlighted by a couple of hosters where their HMC4-based customers were (horror of horrors) able to see each other in the GAL. This is obviously not a good things and was deserving of some investigation. After some digging around and some pointed questions we found that the problem wasn’t that the Default GAL had the wrong permissions, but that applying the Exchange Server 2007 Service Pack1 actually brings back the standard corporate address lists (All Groups Address List, All Users Address List etc). After service pack 1 has been applied, you have to go into the deployment tool and run the tasks below in order to get rid of the ambiguous and security breaching address lists.
-J.
