If you put just the domain after the @ hotmail will accept this and add the symbol when it adds it to the list. (e.g. gmail.com not @gmail.com)

Looking for the safe list? Log into the hotmail website, look on the right side. There is a small button labeled Options. In there you will find the junk mail settings.

Gmail is good, love the Google calndar! Yahoo's new mail interface is very good too. It is very much like using a desktop app and it will check several other mail accounts for you too.