DKIM, which stands for DomainKeys Identified Mail, is a validation system, which impedes email addresses from being forged and email content from being modified. This is done by attaching an e-signature to each email message sent from an email address under a particular domain name. The signature is issued based on a private key that’s available on the outbound SMTP email server and it can be verified with a public key, which is available in the global Domain Name System. Thus, any email with edited content or a forged sender can be identified by email providers. This technology will enhance your web safety greatly and you will be sure that any e-mail message sent from a business collaborator, a bank, and so on, is genuine. When you send out messages, the recipient will also be sure that you are indeed the one who has sent them. Any mail that turns out to be counterfeit may either be labeled as such or may never reach the receiver’s inbox, depending on how the particular provider has decided to treat such emails.