DKIM (DomainKeys Identified Mail) is a state-of-the-art email security standard that protects the authenticity and integrity of your emails. With DKIM record checker it is possible to prevent any security breach on emails between the sender and recipient server. This security standard makes use of public-key cryptography at the end of the sender to sign email using private key. At the recipient server end a public key pre-assigned to a domain’s DNS is used to authenticate the source of the message and also make sure that the contents of the message hasn’t been tampered with during transit. It adds an additional layer of security to the standard SMTP (Simple Mail Transfer Protocol) used to send email which lacks in-built authentication mechanism