On Tue, Apr 05, 2022 at 08:09:10AM -0500, John Hasler wrote: > tomas writes: > > The only credible action left is to decide while the SMTP transaction > > is in process, and to terminate it early. Then, the upstream MTA will > > notice that something went wrong. > > > Most MTAs these days support this option. > > Too late. Note the part about POP3. The upstream MTA is Pobox or > Gandi. They have already completed the SMTP transaction with the sender. > Any anti-spam efforts involving SMTP termination are in their hands. That's why I run my own MTA :) Cheers -- t
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