Fixing Mail Enabled Public Folders per KB 977921

I admit it. I have gotten lazy about posting my new scripts, and haven’t posted anything in forever. Today, someone emailed me about the KB 977921 problem, where a public folder has a directory object but is not flagged as mail-enabled. I wrote a script for this a year ago, and never posted it. So,…


Removing Unresolved SIDs in Exchange 2010

In this post, I’m going to describe how to remove unresolved SIDs from public folders in Exchange 2010. But first, let’s talk about what they are and why we care about them. What are unresolved SIDs? When you view the permissions on a file in Windows or an object in Active Directory, you get a…


New Version of ExFolders Fixes Non-Canonical ACLs

When I wrote ExFolders, I thought the non-canonical Exchange ACL problems were permanently behind us in Exchange 2010. For this reason, ExFolders did not include any functionality to deal with non-canonical ACLs. It turns out I was overly optimistic. In the last few weeks I’ve seen a couple of cases where customers ended up with…


The Effects Of Archival Stubs On Database Space Management

Update: The Exchange 2010 issue was resolved in SP2 RU1. Recently, there have been some theories flying around the blogosphere about the way archive stubbing affects space reclamation in Exchange databases. Specifically, some have questioned whether Exchange will properly reclaim the space when the size of an item in the database shrinks. I contend that…