Replace Subuser with Parent Account

Author: pwseg

src/engage/overview/onboarding.md

@@ -77,16 +77,16 @@ Next, you’ll create a SendGrid subuser and ensure that a dedicated IP has been
 
 ### Authenticate your domain
 
-> info "SendGrid parent and subuser accounts"
-> In this section, you'll authenticate your domain using your new SendGrid subuser account and then set up reverse DNS with your SendGrid parent account. Have both login credentials on hand before proceeding.
+> info "SendGrid parent account"
+> In this section, you'll authenticate your domain and set up reverse DNS with your SendGrid parent account.
 
 Now, you’ll authenticate your domain with SendGrid and your DNS provider and [enable link branding](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-link-branding){:target="_blank"}. Domain authentication protects your sending reputation by showing email providers that you’ve given SendGrid permission to send email campaigns for you.
 
 To authenticate your domain, you’ll copy CNAME records given to you by SendGrid and paste them into your DNS provider. **Before you begin, verify that you have the necessary permissions to add CNAME records to your DNS.** If you’re not sure if you have the right permissions, reach out to your organization’s IT department.
 
 You’ll authenticate your domain using the SendGrid platform and your DNS provider:
 
-1. **From your new SendGrid subuser account**, follow [SendGrid’s domain authentication guide](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-domain-authentication){:target="_blank"}.
+1. **From your SendGrid parent account**, follow [SendGrid’s domain authentication guide](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-domain-authentication){:target="_blank"}.
 2. During the authentication process, SendGrid asks if you would like to brand links for your domain. Select **Yes**.
 3. SendGrid provides you with five CNAME records.  Add them to your DNS host.
 4. Return to SendGrid and [verify your DNS](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-domain-authentication#verifying-your-dns){:target="_blank"}.