You don’t need to add email addresses as user accounts. Instead, you can create email aliases and group addresses for your business communications. These types of addresses are free and don’t count towards your G Suite user licenses.
Email aliases (good for one person): For example, you create the address, [email protected], for customers to contact your company. You can add the address as an alias to your business address, [email protected]. Now, messages sent to email@example.com also arrive in [email protected] Gmail inbox.
Group addresses (good for teams): If your team needs a business address like sales@yourcompany or support@yourcompany, you can create these addresses as groups. Then everyone in your Sales team can receive messages sent to [email protected] in their inbox.