Frank Ellermann wrote:
Scott Kitterman wrote on the DKIM list:
On Thursday 29 November 2007 06:32, Charles Lindsey wrote:
Note that a mailng list expander is supposed to insert a Sender.
IIRC it's a SHOULD and not a MUST, so one really can't rely on it.
Can you (Charles + Scott, or anybody else who knows it) please
check this ? I thought that mailing lists are NOT supposed to
insert Sender (or Resent-*) header fields unless they wish to
participate in PRA checks (RFC 4406).
Sender predates PRA so how can PRA regulate it?
Example: Charles + Scott as authors (2822-From) post an answer
to a mailing list (with 2822-Sender Scott), what's the mailing
list software supposed to do if it doesn't support a 4406 PRA ?
Frank (cc rfc822, maybe it's not exactly a DKIM question)
Unless I am mis-understanding here, if so, I apologize for jumping in ....
No, for a mailing list, Sender: is generally the mailing list's "Pseudo
Admin Agent", like for this list IETF-DKIM message:
or like in our setup in our support lists:
So Scott should not be in the Sender: field.
The key thing is that it should never be part of a HUMAN reply process,
and as far I recall in our various MUA testing, none include it in a
"Reply To All" concept. IMO, this is one reason why the PRA algorithm
Hector Santos, CTO
NOTE WELL: This list operates according to