I recently received an email from "email@example.com" to rate and review TripAdvisor. Since I thought it was coming from TripAdvisor, I wrote a review. Then when I tried to submit it, I found that I needed to login with an email and password. Since I wasn't clear whether the site asking for the review "Trustpilot" was real, I am reluctant to sign up. But I did write a very positive review and it took my time so I am disappointed I couldn't post it.
I had hoped to send it to TripAdvisor through email but there is absolutely no contact information on how to do this on your site.