3 ms·

Discovery is a solved problem same as how signal uses phone numbers: https://support.signal.org/hc/en-us/articles/360007061452-Does-Signal-send-my-number-to-my-

Discovery is a solved problem same as how signal uses phone numbers: https://support.signal.org/hc/en-us/articles/360007061452-Does-Signal-send-my-number-to-my-contacts https://support.signal.org/hc/en-us/articles/360007061452-Do... Nothing stops you from implementing a similar mechanism based on email addresses.

woodruffw 3y ago
Except that it’s no longer email at that point. As others have pointed out: if you want to do things right you need to violate ordinary message and metadata assumptions in SMTP, at which point you’re better off skipping the heartburn and using a modern design.