Amazingly - it's a hosting company. Any I talked to their tech and he's
just stubborn ablut it.
http://mpk.com/index.asp
I telneted into his server and this is what I get:
220 Hello X1
helo ctyme.com
250 hello mail.mpkdev.com
mail from: <>
501 bogus mail from
It's not selective - this is the response from anyone. He's frustrated
with bouncespam and doesn't know how else to deal with it. I was just
asking here to make sure I wasn't crazy myself. Thanks for the feedback.