DKIM, which is an abbreviation for DomainKeys Identified Mail, is an email validation system, which obstructs 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 given domain name. The signature is generated on the basis of a private encryption key that’s available on the outbound email server and it can be verified by using a public key, which is available in the global DNS database. Thus, any message with altered content or a forged sender can be recognized by mail service providers. This method will boost your web security markedly and you will be sure that any email sent from a business associate, a bank, and so on, is a legitimate one. When you send out 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 tagged as such or may never reach the receiver’s mailbox, based on how the given provider has chosen to treat such email messages.