[powerful_rogue]

Originally Posted by Krofh

This is because Hotmail has a whitelist-only spam filter. Instead of just filtering out emails from blacklisted domains, they have a tendency to only allow emails from whitelisted domains.
I wrote a plugin for a friend's site awhile back that would fetch your MSN Messenger contacts and invite them all to the forum... unfortunately this was the biggest obstacle, and what we discovered after about three solid weeks of looking into it that is that they wanted us to pay a rather significant amount of money to be whitelisted. On the other hand, I'm affiliated with other sites that don't pay, but I think in those cases there are thousands of users clicking the "not spam" notifications on the emails.
Not sure completely if I'm all right on this information, but either way my experience with trying to get emails to Hotmail/MSN was pretty shitty. I recommend an Internet-wide boycott.

Thats quite annoying.

Ive just tried sending an email from my @mysite.com which is set up in outlook express and even that dosent get through. I can understand hotmail need to stop spam, but blocking every single address unless its on a white list is quite excessive.