SPF stands for Sender Policy Franework or Sender Regulatory Framework. Cyber protection against the falsification of addresses in the sending of emails. ? Identifies, through the domain name records (right side of the @ ), the SMTP mail servers authorized to transport the messages. My email is ****@**aut . cl The STP reads the plaut domain, goes to the server where it is registered and managed and verifies the legality of both.
