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Re:When will Google shut down Stadia? by joshuamorton on Thursday November 21, 2019 @04:38PM (#21599953)
> Authentic in terms of DNS. That means using and enforcing DKIM at the minimum.

Sure, these are basic things that are generally used as strong signals, but all this does is filter out the incompetent spammers. If you're sending from yahoo or from gmail, you've already solved the reputation problem. And there are other ways of doing the same.

> If 10000 yahoo accounts are sending spam emails, then that's a Yahoo problem. Yes, I would refuse to accept incoming mail from @yahoo.com until they've fixed their complicity.

I'd expect that this is approximately the baseline number of yahoo accounts sending spam when they aren't being actively targeted. Its less than 1% of 1% of the active monthly accounts on yahoo. So you'd like to just block yahoo constantly?

> I disagree about not knowing that they do.

Sure they know, in the sense that I also know that there are always people spamming from every major ISP. That doesn't mean that they can immediately address things. And while you're busy blocking all comcast users from sending your users email, your users are busy moving to a different email provider that identifies individual spam senders so that they can still receive legitimate email.

In closing, a simple question: if solving spam is this straightforward, why hasn't an upstart competitor (yahoo, protonmail, etc.) taken advantage of this strategy to fix the spam problem? It appears you're presuming a centralized system, which defeats the point of email and significantly simplifies the problem.

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