DKIM, which is an abbreviation for DomainKeys Identified Mail, is an email validation system, which obstructs email addresses from being spoofed and email content from being tampered with. This is achieved by adding a digital signature to every email message sent from an email address under a specific domain name. The signature is created based on a private key that is available on the outgoing SMTP mail server and it can be validated using a public key, which is available in the global DNS database. In this way, any message with changed content or a forged sender can be identified by email service providers. This technology will boost your worldwide web security considerably and you will be sure that any email sent from a business associate, a bank, and so on, is an authentic one. When you send out emails, the recipient will also know for sure that you are indeed the one who has sent them. Any email that turns out to be bogus may either be marked as such or may never appear in the receiver’s mailbox, based on how the particular provider has decided to treat such messages.
