DKIM

Missing SPF records are a common and long-standing security issue that puts sensitive information at risk. To get a better idea of just how widespread the problem is, the Detectify team decided to scan the 500 top-ranked Alexa sites for it. We found that less than half of those domains have configured email authentication correctly to prevent spoofed emails being sent from their domains, which means that users are at risk of receiving false emails appearing to come from domains that they trust. To prevent spoofed emails, all systems must be manually configured correctly to the highest standard of authentication. Unfortunately, the process is complicated, and often servers are misconfigured. The Detectify team has put together an extensive guide to help you check if your domain is at risk of forced spoofed emails, and also give you the tools to configure the authentication correctly.