Seems like he got in the way of someone else's keyboard and caused himself to receive an unsolicited email by mistake.
There is such a fine line between self-promotion and other-promotion.
Reminds me of the guy on a crowded bus who's foot was being stepped on by another passenger.
"Uh, excuse me, sir.
"Somehow I seem to have wedged my toes under your foot and they got stuck. I hope it's not making you uncomfortable, but if you would kindly take your foot off my toes I will gladly yield you a bit more space down there.
"Thanks, so much."