I am also a 30 year Comcast customer. I'll add my experience. Since Comcast does NOTHING, I have turned off spam filtering because it interferes with filters. And, I have been adding new filters almost every day. I currently have about 50, but I have virtually stopped spam. I still get one or two a week. I ignore the sender email address entirely because they are either stolen or made up and they change. I enter the Sender/Subject, examples: Silver-Singles, zippy loan, Roofing Survey, Wells Fargo, ZenDeals, crepe erase, and then _Crepe_Erase- when they changed it, lyft, linkedin, Evite, MemberSurvey-Customer Satisfaction, etc... Then I direct them to the Spam folder. If I'm convinced that it is working correctly, I change that to Discard so that I never see them and the spam folder doesn't get too full too soon. You can't kill 'em all. Good luck.
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