DKIM, which is an acronym for DomainKeys Identified Mail, is an email validation system, which stops email addresses from being forged and email content from being meddled with. This is achieved by attaching an e-signature to each and every email sent from an email address under a specific domain. The signature is published on the basis of a private encryption key that is available on the outbound SMTP server and it can be validated with a public key, which is available in the global DNS database. Thus, any message with altered content or a spoofed sender can be identified by email service providers. This technology will increase your web safety immensely and you’ll be sure that any email message sent from a business associate, a banking institution, etc., is a legitimate one. When you send messages, the receiver will also be sure that you are indeed the one who has sent them. Any mail that appears to be fraudulent may either be labeled as such or may never end up in the receiver’s inbox, based on how the given provider has decided to cope with such email messages.