Hello Mark,
the "exists" [1] macro results in A queries and the zone contains A
records. That's why the check-names processing applied.
Thanks for the hint regarding the nameserver hostnames.
Daniel
[1] https://tools.ietf.org/html/rfc7208#section-5.7
On 04.01.21 10:33, Mark Andrews wrote:
> SP
SPF records are TXT record which are NOT subject to check-names processing.
If you created a seperate zone use nameservers that DO NOT live within the zone.
ns1._spf.switch.ch is NOT a legal hostname as it is not LDH.
> On 4 Jan 2021, at 20:01, Daniel Stirnimann
> wrote:
>
> Hello all,
>
> I
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