People will complain about the meta-information leakage of email but then turn around and suggest we should instead use something based on your phone number[1]. I guess this is a reminder that phone number based contact discovery has issues as well ... perhaps worse ones in practice.
With email the server operators know who is talking to who but do not necessarily know who any of those people are. Email clients will not show who has you in their contact list. There is no practical way to enumerate every active email address in use.
With email the server operators know who is talking to who but do not necessarily know who any of those people are. Email clients will not show who has you in their contact list. There is no practical way to enumerate every active email address in use.
[1] https://latacora.micro.blog/2020/02/19/stop-using-encrypted....