SPF, which is an abbreviation for Sender Policy Framework, is a verification system that aims at stopping the so-called email faking. Essentially, this means sending a message from one email and making it look like it’s sent from another one with the objective to scam in some manner the individual getting it. When the SPF protection is activated for a domain, a record which contains all mail servers authorized to email messages with addresses part of the domain is made. The record is placed on all the DNS servers that direct the Internet traffic worldwide, so they all will identify whether an email message originates from an authentic server or not. The verification is done at the very first server where the e-mail goes through and in the first case the message is forwarded, whereas in the second one it is discarded and it never reaches the intended recipient. Employing SPF records for your domains will prevent any unwanted people from making use of your email addresses for malicious objectives.