Authentication is sort of like a license plate for your email. It provides a trackable identifier that indicates you're a legitimate emailer.

In this article:

Types of authentication

There are four different types of authentication to consider when sending bulk email content.

  • DKIM
  • DomainKeys
  • SenderID
  • SPF

Set up MailChimp authentication

MailChimp's authentication is enabled by default and automatically adds DKIM authentication to your campaigns along with SPF, SenderID, and DomainKeys. When authentication is disabled for a campaign, we still include the MailChimp SPF record. Disabling authentication in MailChimp only removes DKIM from the campaign send.

If you've previously turned off authentication for your campaign and need to re-enable it before sending, change your settings in the  Setup step of the Campaign Builder. Under More Options, make sure the Authenticate campaign option is checked.
authentication options

Note

When sending through MailChimp, you could also set up your own SPF record for our IP addresses or configure custom DKIM.

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