"Submit move" email notices don't work

The email notices that are supposed to be generated automatically when he hits "Submit move" button don't work for only one opponent. Works fine for others. If he includes a message with the move it does work. It is not a spam filter problem. I reset settings, logged out, logged back in, reset them again with no affect. Suggestions? Thanks.

Originally posted by nightflight
The email notices that are supposed to be generated automatically when he hits "Submit move" button don't work for only one opponent. Works fine for others. If he includes a message with the move it does work. It is not a spam filter problem. I reset settings, logged out, logged back in, reset them again with no affect. Suggestions? Thanks.