ietf-dkim
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Re: [ietf-dkim] Resigner Support of RFC 5617 (ADSP)

2009-10-11 06:45:50
On 10 Oct 2009, John Levine wrote:
People who contribute to mailing lists shouldn't say dkim=all.  We
argued this ad nauseam when we were hammering out ADSP, it shouldn't
come as a surprise to anyone.

I'm an outsider delurking to say:

If this is indeed the official semantics of the protocol, then I would
petition to add a "dkim=except-mlist" policy.  Which means "I sign
everything that leaves my bailiwick, but may post to signature-breaking
MLs."

I would find the distinction between this and "unknown" to be useful
information when evaluating incoming mail.  I whitelist all mailing list
traffic -- I have to, because I've programmed my mailserver to reject Bcc
traffic otherwise.  *I* would be able to treat except-mlist as all.  But
for an ISP that doesn't know its users well, except-mlist = unknown.

---- Michael Deutschmann <michael(_at_)talamasca(_dot_)ocis(_dot_)net>
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