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Re: Lack of replies

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Hi Jeremy,

On Thu, Jan 04, 2024 at 03:11:59PM +0000, Jeremy Stanley wrote:
> On 2024-01-04 15:54:28 +0100 (+0100), Daniel Gröber wrote:
> > could this rewrite scheme be applied only for recipients where it's
> > absolutely necessary?
> 
> Unfortunately no. It *used* to be a popular assumption that you could
> look at the published DKIM/DMARC policies [...] but [...] Gmail decided
> to treat messages from its own users more strictly than the policy it
> publishes for them in DNS. And since Gmail does custom domain hosting
> too, you can't simply limit the workaround to treating their well-known
> domain specially. Given its popularity (near ubiquity) as a freemail
> provider these days, 

Any good reason we cannot look at the MX domain (or in the worst case) ASN
associated with mailserver IP to special case particularly offensive
implementations such as this if looking at the DMARC policy works in the
average case?

> telling users they'll have to get an address somewhere else to interact
> with the BTS is unlikely to end well either.

That's certainly not something I'd advocate for. I want us to minimize the
PITA for the technically literate without sacrifising general usability.

--Daniel

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Thread

Lack of replies Steven Robbins <steve@sumost.ca> - 2023-12-29 23:50 +0100
  Re: Lack of replies Andrey Rakhmatullin <wrar@wrar.name> - 2023-12-30 11:00 +0100
  Re: Lack of replies Steven Robbins <steve@sumost.ca> - 2024-01-02 19:40 +0100
    Re: Lack of replies Scott Kitterman <debian@kitterman.com> - 2024-01-02 20:30 +0100
      Re: Lack of replies Sam Hartman <hartmans@debian.org> - 2024-01-03 04:10 +0100
        Re: Lack of replies Scott Kitterman <debian@kitterman.com> - 2024-01-03 18:20 +0100
          Re: Lack of replies Colin Watson <cjwatson@debian.org> - 2024-01-03 19:40 +0100
          Re: Lack of replies Daniel Gröber <dxld@darkboxed.org> - 2024-01-04 16:00 +0100
            Re: Lack of replies Scott Kitterman <debian@kitterman.com> - 2024-01-04 16:20 +0100
            Re: Lack of replies Jeremy Stanley <fungi@yuggoth.org> - 2024-01-04 16:20 +0100
              Re: Lack of replies Daniel Gröber <dxld@darkboxed.org> - 2024-01-04 17:00 +0100
                Re: Lack of replies Jeremy Stanley <fungi@yuggoth.org> - 2024-01-04 17:30 +0100
                Re: Lack of replies Colin Watson <cjwatson@debian.org> - 2024-01-04 18:10 +0100
            Re: Lack of replies Colin Watson <cjwatson@debian.org> - 2024-01-04 16:30 +0100
              Re: Lack of replies Scott Kitterman <debian@kitterman.com> - 2024-01-04 17:00 +0100
      Re: Lack of replies Michael Neuffer <neuffer@neuffer.com> - 2024-01-03 06:10 +0100
        Re: Lack of replies Scott Kitterman <debian@kitterman.com> - 2024-01-03 18:10 +0100

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