Domain Keys Identified Mail
an email authentication technique that allows the receiver to check that an email was indeed send and authorized by the owner of that domain. This is done by giving the email a digital signature. This DKIM signature is a header that is added to the message and is secured with encryption.

Resources - 2024-06-18 ◦ GitHub - nicanorflavier/spf-dkim-dmarc-simplified: Email security is a key part of internet communication. But what are SPF, DKIM, and DMARC, and how do they work? This guide will explain it all in simple terms to make these concepts clearer.