@BlueArrow - TLD domain or not, if SpamAssassin counts against it, it is what it is. Personally, I'm looking for the cleanest emails I can deliver and if that means using a .com instead of a .info to save .2 on the scale, I'm all for it.
either one, they are both about equal in the eyes of the indexers; some ccTLD's are penalized a bit more heavily than others, but .us, .co.uk, .ca and some others are not bad.
and I'm tired of repeating myself that you do *not* have to be a citizen of the States to register a .us. Look up the damned nexus agreements for any TLD you're interested in, or just apply some creative thinking to it.
.info makes alot more sense rather then .us in my opinion. Plus .us are 4$ a domain when .info are 2$.
http://www.1and1.com