DKIM, which is an abbreviation for DomainKeys Identified Mail, is a validation system, which stops email addresses from being forged and email content from being meddled with. This is achieved by adding an electronic 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 key that is available on the sending server and it can be verified with a public key, which is available in the global Domain Name System. In this way, any message with changed content or a spoofed sender can be recognized by email providers. This approach will increase your online security noticeably and you’ll know for sure that any email message sent from a business associate, a banking institution, etc., 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 appears to be bogus may either be labeled as such or may never show up in the receiver’s mailbox, based on how the particular provider has chosen to handle such emails.