Where I work we have been gradually scaling mailbox sizes back to workable levels. Before each limit change, my manager always wants to know who it is going to affect ahead of time. If you just have one mailbox store, this is an easy task. I have 5 Storage groups and anywhere between 3 and 5 mailstores in each storage group, so it can take me some time for me to go through each mailstore and manually jot down everything. So I decided to dive into a little scripting.