Embed Notice

@dalias @lispi314

What protocol would that be? What normative document agrees with you that mail should be silently dropped after having been accepted with some basis for trusting the envelope sender? (e.g. SPF affirmative pass, aligned valid DKIM signature, etc.)

Note that I am not arguing that one should generate bounces lightly. Everything that can be checked at SMTP end-of-data before acceptance should be but there are edge cases where a proper bounce message should be sent.