If your email account is showing a different sender name than what you have set, here are a few things you can check:

1. Check the From field when composing a new message.
2. Log into your email account and confirm the sending address.
3. Check the Display Name field in the account settings.
4. Check any email forwarding rules you have set up.
5. Check your automations settings and make sure they are using the correct sender information.