DKIM, which stands for DomainKeys Identified Mail, is a validation system, which hinders email addresses from being spoofed and email content from being manipulated. This is achieved by adding an e-signature to each and every message sent from an address under a particular domain. The signature is generated based on a private encryption key that is available on the outbound email server and it can be verified by using a public key, which is available in the global Domain Name System. In this way, any email message with altered content or a forged sender can be identified by email providers. This technology will heighten your worldwide web security considerably and you will know for sure that any e-mail sent from a business collaborator, a banking institution, and so on, is a genuine one. When you send out messages, the recipient will also be sure that you are indeed the one who has sent them. Any email message that appears to be bogus may either be labeled as such or may never be delivered to the recipient’s inbox, based on how the given provider has decided to treat such messages.