A feature that allows users in the U.S. to participate in GroupMe chats via standard text messages, without needing the app or internet access.
Hello, thank you for reaching out to Microsoft Q&A.
If you no longer have access to your old email address to verify your identity, you will first need to try recovering that email account through your email provider.
If it is a Microsoft account, you can attempt to recover it using the Account recovery form here:
If you are unable to recover your email account, you can contact GroupMe Support using the phone number you used to access your GroupMe account. Please make sure to reach out to them during business hours.
https://go.microsoft.com/fwlink/?linkid=2248342