DKIM, which is an acronym for DomainKeys Identified Mail, is a validation system, which impedes email addresses from being spoofed and email content from being tampered with. This is done by adding a digital signature to every email sent from an address under a particular domain. The signature is created on the basis of a private cryptographic key that is available on the SMTP server and it can be validated with a public key, which is available in the global DNS database. Thus, any email message with changed content or a spoofed sender can be recognized by email service providers. This approach will heighten your worldwide web safety immensely and you will know for sure that any email message sent from a business collaborator, a banking institution, and so on, is genuine. When you send email messages, the recipient will also be sure that you are indeed the one who has sent them. Any email that appears to be fraudulent may either be flagged as such or may never appear in the receiver’s inbox, depending on how the given provider has chosen to handle such email messages.
