DomainKeys Identified Mail

DomainKeys Identified Mail, or DKIM, is a method for validating the genuineness of an email message by using a digital signature. When DomainKeys Identified Mail is enabled for a particular domain, a public cryptographic key is published to the global DNS system and a private one is stored on the mail server. When a new message is sent, a signature is generated using the private key and when the message is received, the signature is verified by the incoming POP3/IMAP server using the public key. In this way, the receiver can easily tell if the message is authentic or if the sender’s address has been forged. A discrepancy will appear if the content of the email has been edited in the meantime as well, so DomainKeys Identified Mail can also be used to ensure that the sent and the received messages are identical and that nothing has been added or removed. This email validation system will enhance your email safety, as you can validate the genuineness of the important email messages that you get and your partners can do the same with the emails that you send them. Depending on the particular email service provider’s policies, an email message that fails the examination may be erased or may reach the recipient’s mailbox with a warning flag.