DKIM, which is an acronym for DomainKeys Identified Mail, is an email authentication system, which stops email headers from being forged and email content from being modified. This is done by adding an electronic signature to each message sent from an email address under a certain domain. The signature is issued based on a private key that is available on the outgoing mail server and it can be verified with a public key, which is available in the global DNS database. In this way, any email message with altered content or a spoofed sender can be identified by mail service providers. This technology will enhance your web safety dramatically and you’ll know for sure that any e-mail message sent from a business partner, a bank, and so on, is authentic. When you send emails, the recipient will also know for sure that you are indeed the one who has sent them. Any email message that appears to be fake may either be marked as such or may never enter the receiver’s mailbox, depending on how the particular provider has chosen to handle such emails.
