I recently changed the mailbox quota limits on my Exchange 2000 Server machine, but the new limits didn't take effect for almost an hour. Why did the change take so long?
In Exchange 2000, the quota limits are attributes of Active Directory (AD) objects. Therefore, when you change the quota, Exchange tags the object as modified, then a background maintenance thread makes the change. In addition, after the change has been made on one AD Global Catalog (GC), you might also have t...