DKIM, which is an abbreviation for DomainKeys Identified Mail, is a validation system, which hinders email addresses from being forged and email content from being meddled with. This is achieved by attaching an e-signature to each email sent from an address under a certain domain. The signature is published on the basis of a private encryption key that’s available on the outgoing SMTP mail server and it can be verified by using a public key, which is available in the global Domain Name System. Thus, any message with altered content or a spoofed sender can be spotted by email service providers. This technology will heighten your online safety significantly and you’ll know for sure that any email sent from a business ally, a banking institution, and so on, is a legitimate one. When you send out emails, the receiver will also be sure that you are indeed the one who has sent them. Any mail that appears to be forged may either be tagged as such or may never enter the receiver’s inbox, depending on how the particular provider has decided to handle such emails.
