You should have gone full Boxster.
I sent an email to our division office last week. My division counterpart copied in a bunch of other division folks on a subject she didn't know **** about so when I replied to her I copied all of them in. I typed it. Let it sit. Edited it. Let it sit. Edited it. Hit send.
I thought it was forcefully direct but diplomatic.
Our lawyers take was = :shocked:
So, maybe not so diplomatic?