COVID-19 Update: 30% off all plans
View App

What is DKIM – Explained

The key for email deliverability is making sure your emails are being delivered at the right person, at the right time, with the right frequency and with the right message. At Relevon, our goal is to enable e-retailers around the globe deliver relevant messages in front of the relevant audiences. To ensure the message actually reaches your customer’s inbox is essential to understand few technical details, such as what is DKIM and why it matters.

What is DKIM?

DKIM means Domain Keys Identified Email, which is a cryptographic technology created by Cisco and Yahoo. DKIM is now an “Internet Standard”, since September 2011. The purpose of DKIM is to allow the recipient to check whether the email received was indeed sent by the actual owner of the domain name, therefore reducing spam and phishing emails.

How does it work?

  1. The sender adds a digital signature (a private key) to its domain name, to each outgoing email.
  2. The recipient’s server verifies the signature by looking up sender’s DNS.

Why DKIM matters?

Just like Sender Policy Framework (SPF). DKIM is an email authentication method designed keep email as a trustworthy communication channel by reducing email spam and phishing.

Usually, when an email is being sent, the receiving email server performs multiple real-time checks and decide whether to allow the email into recipient’s inbox or mark it as spam/bounce it back. DKIM is now an essential email authentication method that every business should implement into their email configuration, to ensure maximum email deliverability.

More Resources on DKIM

You check out: and

To learn more about implementing DKIM, SPF, or DMARC with your Relevon account, simply contact our support team at

Ready to double your email revenue?

Get Started For Free

Andrei Negrau

Andrei took on a mission to make email marketing relevant, more personal, more efficient through Relevon, an AI-powered email personalization solution for world's most innovative e-retailers.