no more subject prefix for xetex mailing list

Zdenek Wagner zdenek.wagner at gmail.com
Tue Mar 5 15:31:02 CET 2019


út 5. 3. 2019 v 15:21 odesílatel Julian Bradfield
<jcb+xetex at jcbradfield.org> napsal:
>
> On 2019-03-05, Zdenek Wagner <zdenek.wagner at gmail.com> wrote:
>
> [ Please don't top-post. ]
>
>...
>
> > And the last thing, setting of DMARC at tug.org is wrong, the DNS
> > query returns the SPF record, not the DMARC record.
>
> No, it isn't wrong - there is no setting for DMARC.
> A dns query for _dmarc.tug.org TXT records returns two records:
>
> _dmarc.tug.org.         8555    IN      CNAME   tug.org.
> tug.org.                8555    IN      TXT     "v=spf1 a a:freefriends.org mx:freefriends.org a:fencepost.gnu.org include:_spf.google.com ~all"
>
> tug.org has a wildcard CNAME *.tug.org -> tug.org (which strikes me as
> bad practice, but not wrong).
>
> DMARC does not specify whether CNAMEs should be followed, but even if
> they are, DMARC only looks at valid DMARC records.
>
Yes, there is CNAME but it refers to a SPF record, not to DMARC
record. DMARC should contain a different type of information with a
different syntax.
>
Z. Wagner



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