From: M_Hopwood on
I shared my entire mailbox including subfolders with 2 colleagues as an
interim before getting a joint email account.

Now I have the joint account, I want to revoke sharing permission for my
mailbox.

I can't seem to reverse the process I did to share it as right-clicking the
mailbox, inbox or any subfolder, and selecting Properties or Sharing...
brings up dialogues which lack the tick-list of share-ees!

How do I access the list of colleagues and demote them from their current
access privileges?