DomainKeys Identified Mail, or DKIM, is a system for validating the authenticity of an email message by using an e-signature. When DKIM is enabled for a given domain name, a public cryptographic key is published to the global DNS system and a private one is stored on the email server. When a new message is sent, a signature is generated using the private key and when the email is delivered, that signature is verified by the incoming email server using the public key. Thus, the recipient can easily tell if the email is genuine or if the sender’s email address has been forged. A mismatch will appear if the content of the email has been altered on its way as well, so DomainKeys Identified Mail can also be used to ensure that the sent and the received email messages are identical and that nothing has been added or erased. This authentication system will strengthen your email security, as you can verify the legitimacy of the important emails that you get and your partners can do likewise with the emails that you send them. Based on the particular email service provider’s policy, an email that fails the check may be erased or may end up in the receiver’s inbox with a warning symbol.

DomainKeys Identified Mail in Hosting

The DomainKeys Identified Mail functionality is pre-activated for all domains that are hosted in a hosting account on our cloud web hosting platform, so you won’t need to do anything on your end to activate it. The sole condition is that the particular domain should be hosted in a web hosting account on our platform using our MX and NS resource records, so that the e-mail messages will go through our mail servers. The private cryptographic key will be created on the server and the TXT resource 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 enable this option. The DomainKeys Identified Mail authentication system will enable you to send trustworthy email messages, so if you are sending offers or a newsletter to customers, for instance, your emails will always reach their target viewers, whereas unauthorized third parties will not be able to forge your email addresses.