On Thu, Feb 23, 2017 at 09:48:10PM +0100, David Woodhouse wrote: > On Thu, 2017-02-23 at 21:35 +0100, Rafał Miłecki wrote: > > On 12 February 2017 at 14:48, Anthony Sepa via Lede-dev > > <lede-dev@lists.infradead.org> wrote: > > > > > > The sender domain has a DMARC Reject/Quarantine policy which disallows > > > sending mailing list messages using the original "From" header. > > > > > > To mitigate this problem, the original message has been wrapped > > > automatically by the mailing list software. > > You don't need this and I think you were already instructed on other > > ML not to do so. > > > > Just include proper From: as the first e-mail of your e-mail body. > > Actually git format-patch can even do that for you. > > He didn't do that bit. That's the stupid list configuration. Anthony's > problem was that he was posting from a mail domain with stupid > settings. The list's stupidity is a reaction to that. > > Personally, I think we're better off just *rejecting* posts from people > with such broken domains.
Well, it may be stupid, but not really "broken", because it's done intentionally by Yahoo: $ dig +short yahoo.ca TXT "v=spf1 redirect=_spf.mail.yahoo.com" $ dig +short _spf.mail.yahoo.com TXT "v=spf1 ptr:yahoo.com ptr:yahoo.net ?all" $ dig +short _dmarc.yahoo.ca TXT "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_...@yahoo.com;" Long story short, Yahoo uses SPF to only allow yahoo mail servers to send emails with a "From:" field in a @yahoo.whatever domain. Google does the same thing for gmail, but they are just more permissive (for now?). See also https://www.ietf.org/mail-archive/web/ietf/current/msg87153.html David, you could configure the mailing list to avoid the annoying wrapping of the original message, and just change the From field. This may be less confusing (but maybe this already got discussed elsewhere?) Baptiste
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