Paul Smith writes:
The vast majority of the spam I receive has anonymous headers/envelope
information. By that I don't mean there isn't a 'From:' address, just
that the From: address bears no resemblance to the real sender, and
can't be traced back to them.
In that case, the message is pseudonymous, not anonymous.
I don't think Mail-NG really needs to support pseudonymous mail. Maybe
it should support anonymous mail, though.
Of the following three cases, I think the last can be definitely
excluded as a design goal:
1) The labelled sender verifiably is the sender (for suitable
definitions of all that).
2) There is no labelled sender, and the message cannot be traced to its
originator (using means internal to Mail-NG).
3) There is a labelled sender, but it cannot be verified (as RFC822 today)
The first is IMO worth supporting, the second may be.
Arnt