DKIM, which is an abbreviation for DomainKeys Identified Mail, is a validation system, which obstructs email headers from being spoofed and email content from being tampered with. This is done by adding a digital signature to each message sent from an address under a certain domain name. The signature is generated on the basis of a private key that is available on the outbound SMTP server and it can be verified using a public key, which is available in the global Domain Name System. In this way, any message with edited content or a spoofed sender can be identified by email service providers. This technology will strengthen your web security dramatically and you’ll be sure that any e-mail sent from a business associate, a banking institution, etc., is genuine. When you send email messages, the receiver will also know for sure that you are indeed the one who has sent them. Any email that appears to be fraudulent may either be marked as such or may never end up in the recipient’s inbox, based on how the particular provider has decided to deal with such messages.
