RE: Adress rejected for policy reasons. Domain not found in DNS. Harkpabst Meliantrop 26.Jun.06 12:25 PM a Web browser Domino Server 6.0.2 CF2Windows XP
No doubt, it will work. But it doesn't quite what he requested. Verifying connection hostnames is one of the most effective, simple to set up weapons agains spam, even if it comes at a price. Simply switching it off is probably not something one administrator will want to decide on his own discretion.
However, I don't think that there is a way to exclude one specific email address from this check.