one point was badly worded below, the following is better:
If you accepted both valid and invalid recipients your reject would be
for both recipients. (I implied the reject went to the receipient which
is nonsense).
On 12/07/2024 16:59, John Fawcett via Postfix-users wrote:
On 12/07/2024 15:30, Ralph Seichter via Postfix-users wrote:
....
I can imagine a custom milter which stores message data, rejects the
original SMTP delivery attempt after the end of the DATA phase, and
later re-injects the captured data in some fashion (not necessarily
using SMTP), but this way madness lies.
"My advice true, forget this!" (Alvina)
-Ralph
Ralph
I agree with the advice but have some doubts about the milter
solution. Would a milter solution that rejects the message at the end
of data stage work for the more general case of a multi recipient
email which contain both valid and invalid recipient addresses? I
assume that when you get to the end of DATA stage your are either
rejecting or accepting the message for all recipients that you
accepted at the RCPT TO stage.
If you accepted both valid and invalid recipients your reject would go
to both. If you only accept valid recipients and it so happens the
message was addressed to a single invalid recipient, the smtp session
would not get to the DATA stage.
John
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