Comment by wuschel
7 hours ago
> Optional postage for strangers: the server can answer a first contact with a 402. Configurable per mailbox; the cost of cold spamming stops being zero.
Interesting take re putting a cost on spam. Perhaps another take would be functionally implementing introductions.
> First-contact consent: an unknown sender doesn't get into the mailbox; they land in a "requests" box with their first message visible (like Signal's message requests). You accept, and the thread opens forever. A stranger can knock on your door, which is the essential property of mail, but they can't fill up your living room.
Unfortunately, this will only move the problem, and only reduce it in the case when all outside communication is ignored.
Yeah the 'Requests' folder just becomes the new Inbox folder.
Email clients already highlight/filter people in your contacts
We could add a friend-of-friend for 1 degree of separation (Alice gets an email from Bob, she doesn't know Bob, so it would go into her Requests folder. But Charlie knows Bob and has said 'yes this guy is legit' and Alice has configured her email to trust Charlie's email recommendations up to 2 degrees of separation, so it goes into the inbox with an explanation that it was allowed by Charlie's trust of Bob).
And poof, we've poorly remembered Web of Trust from 20 years ago!
Overall I do love the idea of HTMP and if we could get it to easily fall back to standard old bad email, I think it could start as a niche and then upgrade towards HTMP over time as more clients adopted support for it.