Dealing with malicious (or spam) emails -- NEVERMIND
==========Sorry, I see the answer in the thread======================
Using the webmail console does in fact do something like this. Otherwise the messages can be forwarded from the local client to email@example.com . My bad!
Is there any value at all to dealing with malicious email (by calling it spam) on the webmail interface rather than in a local email client?
I would hope that Comcast is doing analysis of these emails in order to enhance their blocking software. It would seem to me that classifying them as spam would support this. I don't see how blocking them in my local client would contribute to that.
By the way - these emails look potentially very nasty... like they could be point directly to servers that distribute malware - possibly ransomeware. They get through pretty frequently.
If anybody knows a comcast security alias to forware them to, I would be happy to do so.