Hi Cas,

thanks a lot. All questions answered. 😊

bye
Norbert

Von: Cas de Reuver <[email protected]> 
Gesendet: Freitag, 31. Januar 2025 14:45
An: Fehlauer, Norbert <[email protected]>
Cc: [email protected]
Betreff: Re: [mailop] SPF all mechanism

Hi Norbert,

Not adding this mechanism will return a neutral result if nothing matches: 
https://datatracker.ietf.org/doc/html/rfc7208#section-4.7

--
Cas de Reuver
http://reuver.co/


On Fri, Jan 31, 2025 at 2:29 PM Fehlauer, Norbert via mailop 
<mailto:[email protected]> wrote:
Hi,

usually there's some kind of "all" mechanism (~all, -all ?all) when using a SPF 
record for a domain. Is a SPF record without an "all" mechanism valid at all 
(implicit +all) or is this an invalid record in this case?

https://datatracker.ietf.org/doc/html/rfc7208#section-5.1 is not mentioning a 
"must use" or "must exist".

As a SPF record is processed from left to right, it should not matter for valid 
entries that exist in the SPF record, but there's not statement whtat to do 
with non matching hosts.

Anyone can help?

Thanks
Norbert
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