Client error: `GET https://www.mailjet.com/fr/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.mailjet.com%2Ffr%2Fguide-emailing%2Ftaux-ouverture%2Fdouble-opt-in%2F` resulted in a `429 Too Many Requests` response: