DKIM, which is an acronym for DomainKeys Identified Mail, is an email authentication system, which impedes email addresses from being forged and email content from being manipulated. This is achieved by attaching an electronic signature to each email message sent from an email address under a specific domain. The signature is created on the basis of a private encryption key that is available on the outgoing server and it can be validated with a public key, which is available in the global Domain Name System. Thus, any email with edited content or a spoofed sender can be identified by mail service providers. This technology will boost your web safety immensely and you’ll be sure that any email sent from a business ally, a bank, etc., is a genuine one. When you send out messages, the receiver will also be sure that you are indeed the one who has sent them. Any email that turns out to be phony may either be flagged as such or may never reach the recipient’s mailbox, based on how the given provider has decided to treat such messages.