In simple terms DMARC is email protection. It is the next evolution in technologies that have been layered on top of the basic SMTP email protocol in an effort to improve email security. It stops attackers sending email from your domain. Commonly called domain spoofing. Fixing SMTP just isn’t possible. Email is so prevalent that getting everyone to switch to something new would be almost impossible. Layering on top of SMTP allows for the gradual adoption of new technologies without breaking old ones. Let’s explore why you should care about DMARC. DMARC is made up of 3 technologies: Sender Policy Framework SPF is a DNS record that you create, that tells the world these are the places my domain sends email from. This should include your mail server but also your website if it uses contact forms, bulk email platforms like Sendgrid and any other web applications that send email using your domain. SPF provides a method for indicating to mail servers checking your DNS records how...
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