DomainKeys Identified Mail, or DKIM, is a system for confirming the legitimacy of an email using an e-signature. When DKIM is activated for a specific domain, a public key is published to the global Domain Name System and a private one is kept on the mail server. When a new email is sent, a signature is issued using the private key and when the message is delivered, that signature is checked by the POP3/IMAP server using the public key. Thus, the receiver can easily recognize if the email message is legitimate or if the sender’s email address has been spoofed. A discrepancy will appear if the content of the email message has been modified in the meantime as well, so DKIM can also be used to make sure that the sent and the received emails are identical and that nothing has been attached or removed. This validation system will heighten your email security, since you can validate the authenticity of the important emails that you get and your partners can do likewise with the emails that you send them. Depending on the particular mail service provider’s adopted policy, an email that fails the test may be deleted or may show up in the recipient’s inbox with a warning alert.

DomainKeys Identified Mail in Shared Web Hosting

The DomainKeys Identified Mail feature is pre-enabled for all domains that are hosted in a shared web hosting account on our cloud servers, so you won’t have to do anything yourself to enable it. The sole requirement is that the particular domain should be hosted in a website hosting account on our end using our MX and NS resource records, so that the e-mail messages will go through our email servers. The private key will be created on the server and the TXT record, which contains the public key, will be published to the global DNS system automatically, so you won’t have to do anything manually on your end in order to activate this functionality. The DomainKeys Identified Mail authentication system will allow you to send out trustable emails, so if you’re sending offers or a newsletter to customers, for instance, your emails will always reach their target audience, while unauthorized 3rd parties will not be able to spoof your email addresses.