[IMail Forum] Emails going missing

[Adam \(Snowboard\)]

I am experiencing a weird problem sending emails. I cannot send emails to myself or anyone else with the word Snowboard .com in them. I have check the Rules.ima folder and cannot see any rules in it that would cause these email to be deleted. We run declude also, but i don't see why declude would mark this as spam. Any ehlp would be great. Where should i start looking for this problem?