Email
What is DKIM?
A cryptographic signature published in DNS that proves an email really came from your domain.
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to every outgoing email and publishes the matching public key as a TXT record. Receiving servers verify the signature, proving the message was not altered in transit and genuinely came from your domain. Together with SPF it forms the backbone of good email deliverability, and the two are what DMARC policies are built on. cPanel can generate DKIM keys for your domain automatically.
Also known as: domainkeys identified mail · dkim record