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Email Authentication Misconfigured by Setup Tools: What to Check

Tuesday, March 03, 2026

Primary Blog/Email Authentication Misconfigured by Setup Tools: What to Check

Automated setup tools are not always your friend.

I mean.. they mean well.

They promise to handle your DNS record setup and email authentication so you don't have to mess with tech gunk.

Sometimes they actually do it right.

But sometimes they don't.

They combine records that needed to stay separate. They add values with invalid syntax. They overwrite something that was already working correctly. And they do all of this confidently, with a green checkmark at the end.

The wizard doesn't know about or care about your sender reputation. It's just running a script.

Your domain is yours.
The deliverability you've built on that domain is yours.
No tool is as invested in protecting it as you are.

So I always verify independently. DKIM, SPF, DMARC. Don't trust the setup flow. Trust the actual DNS records.

Funnel Pulse monitors all three on a continuous basis. If something changes, the signal fires. Doesn't matter if it was you, an integration, or a well-intentioned automation that quietly made a mess.

You'll know. Before the list pays for it.

🚀

​- James

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