Larry Rosenman wrote: > On 2015-11-24 13:11, Tom Lane wrote: > >Kevin Grittner <kgri...@gmail.com> writes: > >>On Tue, Nov 24, 2015 at 11:10 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > >>>>change the From header (and add a Reply-To, so replies still work). > > > >>If this were done, would the other steps (not changing the subject > >>or body of the email) be necessary? > > > >See my followup: I think it's probably true that we could skip those > >changes. But Rudy commented that there's a lot of underdocumented > >subtlety here. There might be reasons I'm missing why we'd need to > >stop doing those things. It doesn't seem like DMARC as such would > >force that, but perhaps those things trigger some popular antispam > >heuristics.
> Any Header or Body changes will invalidate most, if not all, DKIM > signatures. Since DKIM is used as part > of DMARC, it's a problem. > > Not sure what MajorDomo2 will allow you to do. We can turn off header and body changes easily enough, but changing the "From:" address requires patching the Majordomo2 source code; and, as you may already be aware, the maintainers gave up on Mj2 a decade ago, so we'd be on our own for that. I cannot promise any sort of timeline for getting that done; and since that's an essential part of the recipe, I don't see any point in doing the other changes either for the time being. I think the breakage of DKIM signatures is already causing some pain (though nowhere near the level of DMARC). Of course, removing all the "List-" headers *and* our custom footers is a huge step backwards in terms of mailing list functionality :-( Also, removing the [HACKERS] etc tags will annoy some people, for sure. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
