DKIM (DomainKeys Identified Mail) Explained
DomainKeys Identified Mail (DKIM) is an essential email authentication mechanism designed to verify the authenticity and integrity of email messages.
It works by adding a digital signature to outgoing emails, which can be verified by the recipient's email server using cryptographic methods. The sending mail server digitally signs the message using a private key. This signature includes a cryptographic hash of various parts of the email, such as the message body and headers, ensuring that the message has not been altered in transit and originates from a legitimate sender. The sending domain publishes a DKIM DNS record containing a public key that corresponds to the private key used for signing. This record is used by receiving mail servers to verify the authenticity of the DKIM signature.
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You can learn more about how DMARC, SPF and DKIM work together as we have created an entire section that tackles DMARC from start to finish within this knowledge base. GlowHost also offers Managed DMARC Services for those that would prefer a "done for you" hands-off DMARC approach, or for those organizations that prefer to outsource or supplement their own IT department's management of their DMARC policy. GlowHost's Managed DMARC Services combine experienced DMARC email technicians with a Software as a Service DMARC dashboard complete with graphs and robust reporting options.
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