DKIM, which is short for DomainKeys Identified Mail, is an email authentication system, which obstructs email addresses from being forged and email content from being tampered with. This is achieved by attaching an electronic signature to each and every message sent from an email address under a given domain name. The signature is generated based on a private cryptographic key that’s available on the outbound email server and it can be verified using a public key, which is available in the global Domain Name System. Thus, any email with modified content or a forged sender can be spotted by mail service providers. This approach will enhance your worldwide web safety markedly and you’ll be sure that any e-mail message sent from a business associate, a bank, and so on, is a legitimate one. When you send emails, the recipient will also be sure that you are indeed the one who has sent them. Any mail that appears to be bogus may either be flagged as such or may never reach the receiver’s mailbox, based on how the given provider has chosen to cope with such email messages.