Client error: `GET https://www.mailjet.com/wp-content/uploads/2016/12/image.jpeg%20900w,%20https://w3hy.com/wp-content/uploads/2016/12/image-300x200.jpeg%20300w,%20https://w3hy.com/wp-content/uploads/2016/12/image-768x512.jpeg%20768w` resulted in a `429 Too Many Requests` response:
429 Too Many Requests
429 Too Many Requests
(truncated...)