Fastmail has also proxied all images since 2014: https://fastmail.blog/2014/09/16/better-security-and-privacy-through-image-proxying/ https://fastmail.blog/2014

Fastmail has also proxied all images since 2014: https://fastmail.blog/2014/09/16/better-security-and-privacy-through-image-proxying/ https://fastmail.blog/2014/09/16/better-security-and-privacy... You can configure images to load always, or just for contacts, or always manually.