DomainKeys Identified Mail, or DKIM, is a system for confirming the genuineness of an email by using an e-signature. When DomainKeys Identified Mail is enabled for a particular domain, a public cryptographic key is published to the global Domain Name System and a private one is stored on the email server. When a new email message is sent, a signature is generated using the private key and when the email message is received, that signature is verified by the POP3/IMAP email server using the public key. In this way, the recipient can easily know if the email message is authentic or if the sender’s email address has been spoofed. A mismatch will appear if the content of the email message has been edited on its way as well, so DKIM can also be used to ensure that the sent and the delivered messages are identical and that nothing has been attached or deleted. This validation system will boost your email security, as you can confirm the genuineness of the important email messages that you receive and your partners can do the exact same thing with the email messages that you send them. Depending on the given email service provider’s policies, an email message that fails to pass the test may be removed or may enter the receiver’s mailbox with a warning sign.

DomainKeys Identified Mail in Shared Hosting

The DomainKeys Identified Mail option is enabled by default for all domain names that are hosted in a shared hosting account on our cloud servers, so you will not have to do anything on your end to enable it. The sole requirement is that the given 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 DNS system automatically, so you won’t need to do anything manually on your end in order to activate this feature. The DKIM email validation system will enable you to send trustworthy emails, so if you are sending offers or a newsletter to customers, for example, your emails will always reach their target audience, while unsolicited third parties will not be able to spoof your email addresses.