DKIM and DMARC  with SAP Commerce

DKIM is a method for email authentication that allows the sender to associate a domain name with an email message. It uses digital signatures to verify the authenticity of the email and ensure that it has not been modified during transit. When an email is sent, the sender's email server adds a digital signature to the message header using a private key associated with the sending domain. The recipient's email server can then use the public key published in the sending domain's DNS (Domain Name System) records to verify the signature and determine if the email is legitimate.

By implementing DKIM, email recipients can check if the email's domain matches the domain it claims to originate from. If the signatures match and the email passes the verification process, it provides a level of assurance that the email is genuinely from the claimed sender and hasn't been tampered with.

DMARC builds on top of DKIM and another email authentication protocol called SPF (Sender Policy Framework). It adds an additional layer of protection by enabling domain owners to specify policies for how their emails should be handled when they fail DKIM or SPF checks.

DMARC provides instructions to the receiving email server on how to treat emails that fail authentication checks, such as marking them as spam or rejecting them outright.

DMARC also includes reporting mechanisms that allow domain owners to receive feedback on email authentication results. These reports provide insights into who is sending emails on behalf of their domain and whether any unauthorized sources are attempting to send spoofed or fraudulent emails using their domain name.

By implementing DMARC alongside DKIM and SPF, organizations can enhance their email security, protect their brand reputation, and reduce the risk of phishing attacks and email fraud.