[Mailman-Developers] Correcting the display name in the recipient address

[Stephen J. Turnbull]

Simon Hanna writes:

 > >The concern is that a post as archived and delivered to list members
 > >should have nothing in it's headers (including things like From:,
 > >Received:, Message-ID, etc.) that identify the poster or the poster's
 > >domain.

 > I don't know that much about email, but shouldn't each message
 > contain a message ID?

You are correct.

The interpretation of an anonymous list is subtle when it starts
interacting with RFCs, which generally assume that mail has an author
who wants to be identified.  The assumption is that the list is
granted permission by each poster to redact any identifying
information, including the Message-ID which usually contains the
originating domain in order to ensure global uniqueness.  In some
cases there's a unique format to the local part, which identifies the
MTA or even (when customized) the host.  Of course RFC conformance is
important, so we would replace the original Message-ID with a new one.
Possibly we could record the old one (note that many MTAs will record
the incoming Message-ID in their log, too).