Alessandro Vesely wrote in
<[email protected]>:
...
|On Tue 07/Mar/2023 23:46:18 +0100 Jim Fenton wrote:
|> To get things going, here are a few comments on
|> draft-chuang-dkim-replay-problem-01:
|>
|> Section 1.1:
|>
|> [...]
|> “Bcc header field”: There is no Bcc header field. That would contradict \
|> the
|> intent of bcc.
|
|Bcc: is used by some command-line MUAs to derive the envelope. Besides, \
|some
|mailers copy Bcc:, one mailbox at a time, to each outgoing copy of \
|the message,
|which is sent it to the relevant recipient only.
It even seems to be passed through regulary by some MTAs, i had to
change behaviour of the MUA i maintain thus, and add
mta-bcc-ok
(Boolean) In violation of RFC 5322 some MTAs do not remove
`Bcc:' header lines from transported messages after having
noted the respective recipients for addressing purposes. (The
MTAs Exim and Courier for example require the command line op-
tion -t to enforce removal.) Unless this is set corresponding
recipients are addressed by protocol-specific means or MTA com-
mand line options only, the header itself is stripped before
being sent over the wire.
--steffen
|
|Der Kragenbaer, The moon bear,
|der holt sich munter he cheerfully and one by one
|einen nach dem anderen runter wa.ks himself off
|(By Robert Gernhardt)
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