hotmail postmaster contact?

Sorry for the abuse of bandwidth but I've exhausted the standard

I need a working mail alias that gets to a human postmaster at
Hotmail. Have tried postmaster, hostmaster, security and abuse. The only
response other than "this alias doesn't work" was from abuse, telling me
that the spam didn't originate at hotmail...

Sometime in the last 4 weeks or so, they upped the list of IP addr
ranges they don't take mail from. In typical micro$quish standards
non-compliance, they don't bounce it, they give "250 OK" and then
silently trash it. So, I have no way of knowing what they don't like,
how to fix it, etc.