Exclusive junk mail filter stopped working within the last several weeks

I've replied to an another message in the forum regarding Outlook.com's Exclusive email filter setting not working correctly.

My issue is that I've removed all safe/blocked senders and should only be getting email from addresses in my contact list. This is blocking valid senders (e.g. Microsoft, Amazon, USAA, ...) but is still allowing spammers through. When I view details of the message I'm told that the send  is in my contact list. This isn't true.

I then looked at the message source and found that the spammers are including three From addresses:

From:=?ASCII?B?Kk1hdGNoLmNvbURhdGluZ1BhcnRuZXIq?=
From:gddf<*** Email address is removed for privacy ***>
From:vcb12bb*** Email address is removed for privacy ***

Note that *** Email address is removed for privacy *** is gddf ...

I have removed myself from my contact list, but it still comes through. I guess you can't omit yourself!

Maybe you can mark Spam anyone who had multiple "from" tags in their source?

Hope this helps ...