On Thu, Nov 26, 2015 at 11:13 PM, José Luis Tallón
<jltallon@adv-solutions.net> wrote:
> From DMARC.org's Wiki:
> <<< 2 Add an "Original Authentication Results" header to indicate you have
> performed the authentication and you are validating it
> 3 Take ownership of the email, by removing the DKIM signature and putting
> your own
> as well as changing the from header in the email to contain an email address
> within your mailing list domain. >>>
But you missed option #1:
1. Operate strictly as a "forwarder," where the RFC5321.RcptTo field
is changed to send the message to list members, but the RFC5322
message headers and body are not altered.
Pros: Receiving systems can validate the DKIM signature of the message
author, if one was present.
Cons: Senders that depend solely on SPF for authentication will still
fail. Precludes many customary features of mailing lists, such as
"Subject:" tags, list footers/disclaimers, etc.
--
greg
