DKIM, which is short for DomainKeys Identified Mail, is a validation system, which obstructs email headers from being spoofed and email content from being tampered with. This is done by attaching an electronic signature to each and every message sent from an address under a particular domain. The signature is published based on a private encryption key that’s available on the sending server and it can be verified with a public key, which is available in the global DNS database. In this way, any email with edited content or a forged sender can be identified by email providers. This approach will boost your worldwide web security tremendously and you will be sure that any e-mail message sent from a business collaborator, a banking institution, and so on, is a genuine one. When you send email messages, the recipient will also be sure that you are indeed the one who has sent them. Any mail that turns out to be fake may either be flagged as such or may never end up in the receiver’s inbox, based on how the particular provider has decided to treat such email messages.