DKIM (DomainKeys Identified Mail)
An email authentication method that uses cryptographic signatures to verify that an email was sent by an authorized server.
What is DKIM (DomainKeys Identified Mail)?
What is DKIM (DomainKeys Identified Mail)?
DKIM adds a digital signature to outgoing emails using a private key. The recipient's mail server verifies the signature using a public key published in the sender's DNS records. This proves the email wasn't tampered with in transit and actually came from the claimed domain. DKIM is one of three email authentication standards (alongside SPF and DMARC) that work together to prevent email spoofing and phishing.
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