> D, continue to try USER2, as that transaction was delayed.
That what our MTA does as well - DSN for USER1 and USER3, continue to retry
But 2821 says SHOULD NOT retry for DATA 5yz. Why not just stop there
and DSN all of them?
Nope, and several examples have already been given showing why it isn't
Which one? I believe I provided examples which shows this different
interpretation is wrong.
It matches the specifications:
[2821/2821bis - 4.2.5]
When an SMTP server returns a permanent error status (5yz) code
after the DATA command is completed with <CRLF>.<CRLF>, it MUST
NOT make any subsequent attempt to deliver the message.
But this doesn't apply to USER2 or USER3 since neither were accepted as
message recipients. It only applies to one recipient that was accepted:
> USER1, and AFAIK nobody has gone with A on your list.
It applies to all users in the sense of what it says here:
As with temporary error status codes, the SMTP client retains
responsibility for the message, but SHOULD not again attempt
delivery to the same server without user review of the message
and response and appropriate intervention.
which clearly says do not retry and that includes USER2.
Why isn't this followed? It says SHOULD NOT retry.
I disagree that this is a change.
Sure it is. It clearly says SHOULD NOT attempt to deliver.
Hector Santos, CTO