What are DKIM, SPF, and DMARC?
In this FAQ, we will explain what DKIM (DomainKeys Identified Mail), SPF (Sender Policy Framework), and DMARC (Domain-based Message Authentication, Reporting and Conformance) are and what their roles are.
DKIM (DomainKeys Identified Mail) is a method of associating the identity of a domain with a sent message and validating the identity of a domain associated with a received message through cryptographic authentication.
SPF (Sender Policy Framework) is a method of preventing the spoofing of an email address. SPF allows the email server to verify messages received from a domain that has been authorized to send messages by the administrator of that domain
DMARC (Domain-based Message Authentication, Reporting and Conformance) is a technology intended to extend the capabilities of SPF and DKIM. DMARC defines how the recipient mail server handles an email based on the results of SPF and DKIM checks.