Business email address on custom domain name
Businesses use email on their own domain by registering a domain and pointing the domain DNS to an email hosting provider. Sure you can always use the email hosting included with your web hosting, it is best practice to separate these services and use a professional email hosting company. As email is important after all.
Email on your own domain
There are many benefits to registering a domain and using an email address on that domain if you plan on using email. Even if you are not running a business, there are some great reasons to use email on your own domain. All you need to do is register a domain with a service like Namecheap and then get setup with one these email services providers with your own domain below.