The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery. DomainKeys is an e-mail authentication system designed to verify the DNS domain of an e-mail sender and the message integrity. Our control panel facilitates the easy creation and setup of both SPF and Domain Keys for your domain names. In simple terms, SPF and Domain Keys battle spoofing of email addresses so that spammers do not use your email address as the sender of their spam.