DKIM, which is an abbreviation for DomainKeys Identified Mail, is a validation system, which stops email headers from being spoofed and email content from being modified. This is achieved by adding an electronic signature to each message sent from an address under a specific domain name. The signature is published based on a private cryptographic key that’s available on the outgoing email server and it can be validated by using a public key, which is available in the global Domain Name System. In this way, any email with modified content or a forged sender can be identified by mail service providers. This method will strengthen your worldwide web safety markedly and you’ll know for sure that any message sent from a business associate, a banking institution, and so on, is an authentic one. When you send out emails, the receiver will also be sure that you are indeed the one who has sent them. Any email that turns out to be bogus may either be flagged as such or may never be delivered to the recipient’s mailbox, based on how the given provider has decided to deal with such messages.