Whether or not an interview is anonymous will be specified in the invitation you received with the link to begin the interview.
If the interview is anonymous, your email address is only associated with whether or not you have completed the interview. This allows the system to only send reminders to those who have not yet completed. Your feedback is in no way associated with your name. When your feedback aggregates in the Analytics platform with everyone else's feedback, everyone receives a randomized participant number and your name is never seen.
Please let us know if you have any further concerns.