On: A ‘frighteningly ambitious’ way to improve email

[thrownaway2424]

You're wrong. Spammers actively try to monitor their success rates and game the filters.

As for the original idea, backscatter is to be avoided at all costs. Nobody likes bounce messages and so forth for mail they never sent. Much better to reject mail at SMTP time, than generate backscatter to the alleged envelope sender after the fact.

[arn → thrownaway2424]

So how would you prioritize avoiding false positives without backscatter?

I get a lot of spam, so manually reading a spam folder is not a feasible solution.