Email Authentication
istruzione.gov.it
SPF
passDeclares which servers may send mail for this domain.
v=spf1 -all
DKIM
noneCryptographic signature on outbound mail (selector: none).
No record published.
DMARC
passTells receivers what to do with mail that fails SPF/DKIM. Policy: reject.
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s