Ouch. Thats a tough one then -- and it looks like it suddenly started happening in mid-sept. to quite a few other people (based on google searches). Seems that MS changed its policies lately for hotmail / windows live, and it may be that the automatically generated emails from Petoftheday.com are making the site be flagged as spam.

http://listarchive.qmailrocks.org/me....15cbeb79.html

The only information I can seem to find on the net says 'contact MS and ask what policy you are violating' - which doesn't help too much since MS isn't always the quickest to resolve these kinds of issues (i.e. if you're not giving them money, they really don't care).

I know that Gmail works just fine --- Anyone that wants a free account, feel free to PM / let me know and I can mail you an invite (at least for the interm until the Hotmail/MSN issue gets resolved).