DomainKeys Identified Mail, or DKIM, is a method for checking the authenticity of an email message by using an electronic signature. When DKIM is enabled for a certain domain name, a public encryption 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, the signature is checked by the incoming POP3/IMAP server using the public key. Thus, the recipient can easily tell if the email message is genuine or if the sender’s email address has been forged. A mismatch will occur if the content of the email message has been modified on its way as well, so DKIM can also be used to make sure that the sent and the delivered email messages are identical and that nothing has been attached or erased. This validation system will increase your email security, as you can validate the genuineness of the important emails that you get and your colleagues can do the exact same thing with the emails that you send them. Depending on the particular mail service provider’s policy, a message that fails the test may be erased or may reach the receiver’s mailbox with a warning symbol.

DomainKeys Identified Mail in Cloud Website Hosting

If you purchase one of the Linux cloud website hosting plans that we offer, the DomainKeys Identified Mail option will be activated by default for any domain that you add to your shared website hosting account, so you will not need to set up any records or to enable anything manually. When a domain is added in the Hosted Domains section of our custom-built Hepsia Control Panel using our NS and MX records (so that the emails related to this domain will be handled by our cloud hosting platform), a private key will be issued instantaneously on our mail servers and a TXT record with a public key will be sent to the global DNS system. All email addresses set up using this domain will be protected by DomainKeys Identified Mail, so if you send out email messages such as periodic newsletters, they will reach their target audience and the recipients will be sure that the messages are legitimate, because the DKIM functionality makes it impossible for unauthorized parties to forge your addresses.

DomainKeys Identified Mail in Semi-dedicated Servers

Our Linux semi-dedicated servers come with DKIM activated by default, so if you choose a semi-dedicated plan and you add a domain name using our name servers through your Hepsia Control Panel, the records needed for the validation system will be created automatically – a private cryptographic key on our mail servers for the digital signature and a TXT resource record carrying the public key for the Domain Name System. Since the protection is set up for a given domain name, all addresses created under it will have a signature, so you will not need to worry that the messages that you send may not reach their destination address or that somebody may forge any of your addresses and try to spam/scam people. This may be rather important in case you rely on electronic communication in your business, since your partners and/or clients will be able to distinguish real email messages from bogus ones.