Email works with webmail and phone but not Mac

Try this:

• Add the account
• Even when it is unable to verify your email and password click on continue and add the account
• Then go to Mail > Setting > Accounts > Server settings and check them
• If necessary choose uncheck "Automatically manage connection settings" and try to enter the correct settings

Have you entered everything exactly as described by Bluehost? It is important to use the exact same ports and check or uncheck SSL/TLS.

You can check them in Mail > Setting > Accounts > Server settings

Guess one has not yet verified if the Mail Server in discussion is requiring an Application Specific Password to access your mail via Apple Mail Appiation ??

If Mail on your Mac keeps asking for your password

Why is Mail asking for your password?

Mail asks for your password when it is connecting to your email provider, but can't connect to your email account because your email provider isn't accepting your email password.

Your email provider may reject your password for several reasons, including:

• You're not using your current email password. If you updated the password on another device, make sure that you're using the same password on your Mac.
• Your email provider needs you to update or reset your password for security reasons. For example, if you're using Google’s two-step verification, your Gmail account in Mail requires the appropriate app-specific password.
• Your email provider deactivated or suspended your account. Contact your email provider for help.
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Jnote.org wrote:

Thanks, I can't get to the window to add port settings, etc. because I can't get Mail to approve my email and password. It's odd because that email and password works on the phone and on webmail so the information is correct. I'm really stumped. It suddenly stopped working yesterday without me changing anything.

Use Connection Doctor in Mail on Mac - Apple Support