3 ms·
Gmail seems to be proxying the images through: https://ci5.googleusercontent.com/proxy/ https://ci5.googleusercontent.com/proxy/ and my understating the polling
by anonsumus 13y ago
Gmail seems to be proxying the images through: https://ci5.googleusercontent.com/proxy/ https://ci5.googleusercontent.com/proxy/ and my understating the polling happens when Google receives the email not when it's opened.