How to create a Custom Email Domain

Hi SweetzFamily,

It sounds like you do not already own a custom domain, but need to know how to obtain one. This page shows how you can purchase a custom domain:

Purchase a new email domain and add it to iCloud Mail on iCloud.com - Apple Support

If you upgrade to iCloud+, you can purchase a custom email domain and use it with iCloud Mail. You can also add a domain you already own to iCloud. See Add an email domain you already own to iCloud Mail on iCloud.com.

You can have up to five active custom domains configured with iCloud Mail.

Note: Custom Email Domain isn’t available in all countries or regions.

Before you begin

• You need to have two-factor authentication enabled for your Apple ID. If you don’t, you can turn it on at the Apple ID account website.

• You need to have a primary iCloud Mail email address set up to use a custom email domain. If you don’t, see Create a primary email address for iCloud Mail.

The rest of that page shows how to purchase one.

Then, this page has how to set it up:

Set up a custom email domain with iCloud Mail on iPhone - Apple Support

Take care!