Trouble authenticating email domain

Shopify tells me: “Emails you send may show up differently in some customers’ inboxes. Fix this”

When I click “Fix This”, it takes me to a page that says my Domain Status is Pending. It has a configuration button that instructs me to add four (4) CNAME records to my DNS, which I did months ago, however it has never authenticated properly, and I don’t know why.

I contacted support, but got someone who doesn’t understand DNS and couldn’t tell me why it is failing. I would assume that Shopify is just querying DNS to verify those CNAME records exist, which I believe they do (I can query them from the command line with nslookup), so I’m at a loss as to why this is failing.

Registrar is NameCheap

DNS Provider is CloudFlare

Email Provider: Google Workspace

After checking and seeing the authentication had failed again, I went through each entry and checked it very carefully and realized I made a copy/paste error in the DNS setup. I have updated the settings and attempted to re-authenticate. Fingers crossed this was just a human (me) error…