I just tested out your iOS client on my iPhone with https://www.emailprivacytester.com - You failed the "CSS content", "Image tag" and "CSS background-image" tests. Although you appear to be proxying requests as the IPs were in Amazons cloud.
I don't see any option to disable remote resource loading, even though it should default to off.
If I use your client, anybody who emails me will know if and when I read their email, and also the fact that I was using an iPhone whilst doing it (you keep the User-Agent).
I don't see any option to disable remote resource loading, even though it should default to off.
If I use your client, anybody who emails me will know if and when I read their email, and also the fact that I was using an iPhone whilst doing it (you keep the User-Agent).
I think that's bad.