SPF, which is an abbreviation for Sender Policy Framework, is a verification system that is aimed at stopping the so-called email forging. Basically, this indicates sending a message from one e-mail and making it look like it’s sent from a different one with the objective to scam in some manner the individual receiving it. In case the SPF protection is running for a domain name, a record that includes all mail servers authorized to send messages with addresses part of the domain is made. The record is placed on all the DNS servers that direct the web traffic across the globe, thus they all will recognize whether an email message originates from an authentic server or not. The check is done at the very first server where the e-mail goes through and in the first case the e-mail message is forwarded, while in the second it is removed and it never reaches the supposed recipient. Employing SPF records for your domains will prevent any unwanted people from using your emails for harmful objectives.