It appears that Benny Pedersen <m...@junc.eu> said: >On 2022-04-13 19:27, Matus UHLAR - fantomas wrote: > >> however, they miss the nullmx record: >> >> gmail.dk. 300 IN MX 0 . > >if nullMX is added then spf and dmarc can be removed
You need both the null MX and the SPF. Null MX says you don't receive mail, SPF -all says you don't send mail. The DMARC record is a matter of taste. The reports can be amusing to see who's forging your address. R's, John