Google will not delete inactive email accounts on your domain. Instead, as an administrator, you can create and delete email accounts on your domain when necessary.
Learn more about how to create an email list.
In addition, administrators have the ability to suspend any user at any time. Suspended users may not log in until you have re-enabled account access. Learn more about account statuses.
If you sign up for Google Workspace, and you don't verify your domain within a few days before the end of your trial period, your account will be automatically deleted.
You can learn about the various options to verify domain ownership.
