I received and responded to his emails and checked my server mail logs (I sent from two servers/accounts with my latest reply to a message containing exactly what he said above) and the messages appeared to be accepted by his host. I guess I will try contacting him from HotMail...
Thanks for the further heads up... I hate that this had to happen. Please contact me securely at
http://contact.listmailpro.com for such sensitive issues in the future.