Answer to : southplatte
Apache server is sending mails outsourced by mail() as nobody.
As soon as Hotmail server sees that it will cancel the incoming messages EVENTHOUGH your addresse has made his settings on his JUNK MAIL FOLDER priorly
So issue an SPF file on your DNS and subscribe to sender ID at microsoft if you please
I was forced to do that in order to get my Activation MAIL test to my phpBB-Forum wherein I have choosen to use mail() and not SMTP