What is Email Authentication

Spam is despised by everyone. ISPs are working hard to limit the number of spam messages we get in our inboxes. They accomplish this by looking at the email’s origins and determining whether it came from a legitimate sender or a spammer.

Email authentication is used to solve this problem. It’s a collection of techniques that the receiving server can do to ensure that the message is genuine.

Although email authentication appears to be complicated, it is actually rather simple to set up. Even if you’ve already installed authentication and have been using the same email marketing solution for some time, it’s still a good idea to double-check that all of the necessary data are in place and legitimate.

If you’ve recently switched DNS providers, double-check your records because this might have an impact on your email authentication.

Here’s how to set up authentication for Mailchimp.


Mailchimp is a well-known and widely used email marketing tool on the internet.

DKIM authentication is applied to all of your campaigns by default in Mailchimp. Setting up your own DKIM authentication is recommended if you use a custom email domain. The information about your domain will subsequently be shown in the email header by Mailchimp. This might increase delivery rates and make your communication look more professional right away. It also allows you to use BIMI and is compatible with your DMARC.

You’ll need to copy and paste some information from Mailchimp into your domain’s CNAME records to verify your domain if you haven’t before. This allows Mailchimp to confirm that you are authorized to send emails from this address.

  • Log into your Mailchimp account to verify your domain. Then, on the left-hand side of the screen, pick the Website button.
  • Go to Domains > Add & Verify Domain after that. Enter the email address for the domain you wish to verify when requested, and then click Send Verification Email. We recommend Google Workspace if you don’t already have a professional email account with a custom domain.
How to Set Up Email Authentication in Mailchimp

The DKIM and SPF DNS records will be provided by Mailchimp. You’ll need to add these to your DNS provider or domain registrar to finish your domain authentication.