Subject: [Emailcore] Confirming resolution for ticket #26: Erratum 1543: Wrong reply code in Section 3.8

From: "Alexey Melnikov" <[email-masked]>
Date: Mon, 08 Feb 2021 15:40:01 +0000

Dear WG,
This is just to confirm the change that was already applied to the document:

Section 3.8 says:

  SMTP clients that experience a connection close, reset, or other
  communications failure due to circumstances not under their control
  (in violation of the intent of this specification but sometimes
  unavoidable) SHOULD, to maintain the robustness of the mail system,
  treat the mail transaction as if a 451 response had been received and
  act accordingly.

It should say:

  SMTP clients that experience a connection close, reset, or other
  communications failure due to circumstances not under their control
  (in violation of the intent of this specification but sometimes
  unavoidable) SHOULD, to maintain the robustness of the mail system,
  treat the mail transaction as if a 421 response had been received and
  act accordingly.

Notes:

SMTP clients are told to act as though a 451 response ("Requested action aborted: local error in processing") had been received when context clearly indicates that a 421 response ("Service not available, closing transmission channel") was intended.

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If there are no objections to this change, this ticket will be closed in 2 weeks (February 22nd).

Best Regards,
Alexey