SPF (Sender Policy Framework) records are DNS records that specify which mail servers are authorized to send email on behalf of a particular domain name. The purpose of SPF records is to prevent email spoofing, which is when someone sends an email with a fake "From" address using your domain name.

An SPF record is a type of TXT record that is added to a domain's DNS records. It specifies which IP addresses or hostnames are authorized to send email for that domain. When a receiving mail server receives an email, it checks the SPF record for the domain in the "From" address to see if the IP address of the incoming email is on the list of authorized servers. If it is not, the email may be marked as spam or rejected altogether.

SPF records are used to help reduce the amount of spam and phishing emails that use fake "From" addresses. However, they are not foolproof and should not be relied upon as the only means of protecting against email spoofing. To lookup TXT DNS records, you may use our online DNS Lookup tool.