Originally Posted by UAmainbird

The other thing that occurred to me was this might be a phishing expedition. There are a few grammatical errors throughout. And it *is* a new domain. However, they never ask for anything beyond member numbers, address, email. And, if you enter just "joinmarriottrewards.com" (without the /united), or if you try /delta or /american instead, it does direct you to the full / legit MR site.