If you're trying to set up a dedicated domain in Go High Level using Bluehost and keep getting DNS errors, you're not alone.

Here’s a common error you might see:

“Duplicate CNAME record already exists for the entered alias”
or
“Specify a unique record. The record is a duplicate.”

You check your DNS records—and nothing looks duplicated. So why won’t it work?

Let’s break it down and get this fixed.

The Problem

This typically happens when setting up a dedicated sending domain in Go High Level, especially when using Mailgun for email delivery.

You’ve followed all the steps, but your domain isn’t verifying.

The most common troublemaker?
A DNS entry like this:
email.mgc.yourdomain.com → mailgun.org

You try to add it in Bluehost and get a duplicate error, even though nothing is duplicated.

The Fix (Simple and Effective)

Here’s what worked—and it’s surprisingly straightforward:

✅ Follow the normal instructions Go High Level gives you,
✅ BUT… when entering the CNAME or TXT record in Bluehost, append the domain manually in the record field, even if it seems repetitive.

So instead of just typing:

CopyEdit

email.mgc

Try:

CopyEdit

email.mgc.yourdomain.com

That extra domain extension resolves the conflict and allows Bluehost to accept the record.

“It’s annoying, but that small tweak gets it to finally verify in Go High Level.”

Final Notes

If Bluehost is giving you DNS headaches:

• Double-check you’re not actually duplicating entries

• Use the full subdomain in the record entry

• Be patient—it may take a few minutes to verify after saving

Once you get the right entry in, Go High Level should mark the domain as “issued” and you’re good to go.

Need Help Setting It Up?

If you want support with:

• DNS configurations

• Go High Level automations

• CRM integrations

• Or just general tech help

Click the link below to book a free strategy call with our team. We’ll help you troubleshoot or even take it off your hands completely.

👉 Book Your Call Now