My subdomain email is not working. How do I fix it?

I created a subdomain and created email with my hosting company Bluehost. I am trying to access my subdomain email through gmail. I can’t use email subdomain emails this is the error:

"Authentication failed. Please check your username/password.*
*Server returned error: “DNS Error: 5829691 DNS type ‘aaaa’ lookup of responded with code NXDOMAIN 5829691”

I need to receive and send email through How do I setup email with a subdomain?

The setup is no different than for the domain root, except you enter the subdomain in the relevant field instead of @:

The Mail server should be the hostname of your mail server. If the hostname is on your Cloudflare account it needs to be :grey:. Currently, the target of the MX record for is :orange:, which will cause issues.

How should my mx record be setup if I am using emails for the domain and subdomain?

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