When it comes to email security, most users primarily think about complex passwords. Longer ones, with numbers, symbols, and regular changes. This makes sense, because a password protects access to a mailbox. However, in reality, the password is rarely the main cause of email-related problems. Even a perfect password will not prevent attackers from sending emails on behalf of your domain, spoofing the sender, or reducing trust in your entire email infrastructure. This is where SPF, DKIM, and DMARC come to the forefront — technologies without which modern email simply cannot be considered secure.
