DomainKeys Identified Mail (DKIM) Authentication

DomainKeys Identified Mail (DKIM) is a popular email authentication technology that allows for a domain to prove it is responsible for a message and that that message was not altered as it traveled the delivery path.

What is DKIM?

The basis of DKIM is that with the use of public keys published into DNS, messages can be authenticated in a non-path-related method. The authentication process revolves around the creation and decoding of what is called the DKIM signature. DKIM signatures are inserted into the header of an email message. A hash of the body and select header items is created and used in a calculation along with a private key value to create a message signature that can be decoded properly only with the public key which is posted in a domain's DNS.

How Does SocketLabs Authenticate Mail With DKIM?

Every message that processes through the SocketLabs On-Demand Platform is automatically signed with a DKIM signature that authenticates as the point of origin for your messages. This allows every message processing on our platform to properly authenticate at the major service providers. 

No action is required for DKIM authentication to occur on the SocketLabs infrastructure.

What additional options exist for DKIM signing?

SocketLabs also allows the ability to add customized DKIM signatures to your messages. Customized DKIM signatures are in addition to the signature that is already added to every message. For more information about customizing your DKIM signature, please see the following:

CNAME DKIM Signing Feature
Advanced DKIM Signing Feature