Welp, it looks like that email was in my profile's `about:` box. I don't know how it ended up there but I don't recall doing it myself.
Thanks for the suggestion but I have a couple AQMs and the CO in my house is usually 0.
If I did put my email there it was quite a while ago. It's not hard to forget something you did/saw once a long time ago and never looked at again.