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.
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.
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