DKIM, which is an acronym for DomainKeys Identified Mail, is an authentication system, which stops email headers from being spoofed and email content from being manipulated. This is done by attaching an electronic signature to each email message sent from an email address under a certain domain. The signature is issued based on a private encryption key that is available on the outbound SMTP mail server and it can be verified using a public key, which is available in the global DNS database. Thus, any message with edited content or a spoofed sender can be spotted by email service providers. This technology will heighten your web safety dramatically and you’ll be sure that any e-mail sent from a business ally, a bank, and so on, is a genuine one. When you send out email messages, the recipient will also know for sure that you are indeed the one who has sent them. Any email message that turns out to be bogus may either be flagged as such or may never show up in the receiver’s inbox, depending on how the particular provider has decided to cope with such emails.
