What is SPF?

By implementing SPF (Sender Policy Framework), organizations can protect their email domains from unauthorized use and potential cyber threats. SPF acts as a security measure by verifying the sender's domain in the email header, specifically the 5321.MailFrom or Return-Path address. This verification process helps to combat spoofing and phishing attacks by ensuring that only authorized senders listed in the SPF record are allowed to send emails on behalf of the domain. By maintaining an up-to-date SPF record, organizations can establish a public list of approved senders, thus enhancing the security and legitimacy of their email communications.