[Mailman-Developers] Adding DMARC support for Mailman 3

[Barry Warsaw]

On Jul 06, 2013, at 09:00 PM, Franck Martin wrote:

>Similarly, I'm interested to offer the option to list administrators to
>transition to a behavior that makes the lists safe/working/compatible with
>DMARC. As Patrick explained, there are about 3 possibilities, while I'm
>interested more in some than others (I personally experimented with the patch
>to mailman 2.1), it is only fair to offer the 3 options and let the list
>administrator choose the one more suitable for his/her needs. Once Patrick
>has a better understanding on how to best implement these 3 options, it will
>be easy, like for openDMARC, to sponsor the work to make it as part of
>mailman3. I know that several DMARC.org members have shown interest to do so.

One other thing to keep in mind.  Most list administrators have no clue how to
configure their lists.  Just like most technologies, they'll use whatever
defaults get shipped.  Postmaster are more clueful for sure (our own
python.org ones being tip top :) and some of them do get involved in list
configurations.

MM3 supports "list styles" which are essentially composable settings applied
when a mailing list is created.  If there could even be such a thing as a
"DMARC style", it would only need to touch the DMARC related options, and this
style could be shipped in the previously mentioned plugin.

-Barry