To anyone that has received an odd email from me...
Apparently some malware cracked my email account and has been sending out spam messages with heading like, How are you, or something similar, with a ad message at the bottom.
I have changed my comcast password and it seems to have stopped.
This was revealed to me by a huge number of mail daemon undelivered messages in my inbox. Most of those were to old contacts that have somehow accumulated in my contacts folder over the years. I can only assume that many were received as sent by me.
Goddamned Interweb, sorry about that.