Any email sent or received in connection with College business is subject to public records law. If that email was sent from or to your personal account and the institution receives a public records request then your personal account will be included according to the way NC law is written. That is one of the reasons why the college provides email accounts to its employees.
If an email is made or received in connection with the transaction of public business, it is a public record regardless of whether it is created or stored on a public or a private computer or email system. So an email that relates to public business is a public record even if it is sent from a home computer, or made on a personal email account from any computer. This is true whether the email is sent or received by any public employee, or any elected or appointed public official.
So while you have the option to forward the email from your college-provided account to another email account, please be aware of the legal ramifications of that choice.