np=reject;, however, proper implementations should fall back to p= for both sp= and np=, if they are omitted.mail is a CNAME, although I highly doubt it, depending on the implementation, a potentially badly coded implementation could maybe be thinking that it should follow the CNAME for the DMARC record..com; f" "o=0:1:d:s; pct=100; adkim=s; aspf=s"p=reject;, but remove the others (sp/np), if you wish.p=reject; alone, if you don't care about being explicit.p=reject; sp=reject; np=reject;.p= should be enough according to the specs.np=", but not fo=.fo=", but not np=.

;; ANSWER SECTION:
_dmarc.rydercragie.com. 300 IN TXT "v=DMARC1; p=reject; sp=reject; rua=mailto:ac916a4e488c43058046889432174d68@dmarc-reports.cloudflare.net,mailto:n8dvgnuk@ag.eu.dmarcadvisor.com,mailto:DMARC+RUA@RyderCragie.com; ruf=mailto:ac916a4e488c43058046889432174d68@dmarc-reports.cloudflare.net,mailt" "o:n8dvgnuk@fr.eu.dmarcadvisor.com,mailto:DMARC+RUF@RyderCragie.com; fo=0:1:d:s; pct=100; adkim=s; aspf=s"np=reject;p=p=sp=np=np=np=mail.com; f" "o=0:1:d:s; pct=100; adkim=s; aspf=s"p=reject;p=reject;p=reject; sp=reject; np=reject;fo=fo=