Show all domain records
dig saic.it any
Find Out the Domain Mail Server
host -t mx saic.it
Find Out the Domain TXT Recored
host -t txt saic.it
Find Out the Domain SOA Record
host -t soa saic.it
Display All Information About Domain Records and Zone
host -a saic.it
oppure
dig +noall +answer saic.it
https://stopemailfraud.proofpoint.com/dmarc/
Display DKIM record
dig +short mail._domainkey.saic.it txt