Authenticate your domain in Mailchimp
I recently had a deliverability concern with Mailchimp when one of my newsletters appeared in my spam folder. I did some searching and discovered that you can authenticate you domain to potentially improve deliverability.
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Who hosts your domain name? This is where you configure your technical details. https://mxtoolbox.com/SuperTool.aspx
I wanted to share here because this option was really buried and never part of the Mailchimp onboarding stuff. I'm not sure why they would downplay such an important feature. Maybe it's not actually that useful?