I investigated and found it was an old tree mail that you (@JB) sent on August 3rd at 1:19pm (CDT).
It was dormant until this morning at 5:41am (CDT) when a recipient of the mail replied which bumped it back to the top for you to see.
Since I forget things I did yesterday, it's reasonable to presume you forgot composing and sending the original tree-mail almost 3 weeks ago.
