Hi, slightly off topic, SPF is 4408, not 4409, but from my POV
they are related. I'd like to move 4409 to STD, and for that
I think that its chapter 8.1 "MAY add Sender" has to be fixed.
Before I bother the authors with this a quick sanity check, is
the following text okay ?
: The MSA MAY add or replace the 'Sender' or 'Resent-Sender'
: field, if the identity of the sender is known and this is
: not given in the 'From' field.
: For a mail without 'Resent-From' field the MSA adds or
: replaces a 'Sender' field to reflect the known identity.
: For a mail with one 'Resent-From' field the MSA adds or
: replaces a 'Resent-Sender' field, if the 'Resent-From'
: field does not already reflect the known identity.
: For a mail with two or more 'Resent-From' fields the MSA
: verifies that the first (top-down) 'Resent-From' field
: reflects the known identity. Where that's not the case
: it replaces the first 'Resent-Sender' field before the
: second 'Resent-From' field, if that exists. Otherwise
: it adds a 'Resent-Sender' field reflecting the known
: identity before the first 'Resent-From' field.
: For a mail with 'Resent-Sender' field but no 'Resent-From'
: field the MSA MUST reject the syntactically invalid mail.
: The MSA MUST ensure that any address it places in a 'Sender'
: or 'Resent-Sender' field is in fact a valid mail address.
: Sites SHOULD NOT implement this option without the prior
: consent of affected users, and SHOULD reject mails from
: users affected by this option, if those users might not
: know that the local policy was changed to support it.
: For sites enforcing submission rights (6.1) this is less
: critical, if the added or replaced address in the 'Sender'
: or 'Resent-Sender' field reflects the MAIL FROM address.
Frank
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