DomainKeys Identified Mail

DomainKeys Identified Mail, or DKIM, is a system for confirming the genuineness of an email message by using an electronic signature. When DomainKeys Identified Mail is activated for a particular domain name, a public encryption key is published to the global Domain Name System and a private one is kept on the mail server. If a new email message is sent, a signature is generated using the private key and when the message is received, the signature is checked by the incoming mail server using the public key. Thus, the recipient can easily discern if the message is authentic or if the sender’s email address has been forged. A mismatch will appear if the content of the email message has been edited on its way as well, so DomainKeys Identified Mail can also be used to make sure that the sent and the delivered email messages are identical and that nothing has been attached or erased. This email authentication system will enhance your email security, as you can confirm the legitimacy of the important emails that you receive and your associates can do the same with the messages that you send them. Based on the particular email service provider’s policy, an email that fails to pass the test may be deleted or may enter the recipient’s inbox with a warning notification.