[derekzhouzhen]

I remember I need to file a complaint with Microsoft. You can also register a few outlook.com accounts and manually train the system :)

Seriously, the whole SPAM situation is way overrated. In the name of fighting SPAM, they (the big email providers) blocks us, but they let all the ads in? To add injury on top of insult, they are lenient for paying corp accounts but very strict for "free" personal accounts?

If this does not tell you what "free" big email providers are, nothing will.