Re: Mail without `From:' lines

[Per Persson <pp@pfawww.pp.se>]

Per Abrahamsen <abraham@dina.kvl.dk> writes:

   >>>>> "PP" == Per Persson <pp@pfawww.pp.se> writes:

   PP> It's not up to the mailinglist to add a "From: " header.

   I think the mailing list should reject such submissions, but I suspect
   most mailing lists will add a `From: ' header based on the envelope if
   you actually try.

These are the relevant headers from your mail;

>From ding-request@ifi.uio.no  Mon May  6 19:13:59 1996
Sender: abraham@dina.kvl.dk
From: Per Abrahamsen <abraham@dina.kvl.dk>

1) the list adds an appropriate "From " header.
2) your MUA or your MTA adds a "Sender: " header, in perfect
   conditions this should be done by the MTA.
3) your MUA adds a "From: " header--if missing, the MTA might do it.

An MUA should use option three first, then option two if three is
missing which is shouldn't be.

An MUA should NOT use the "From " header, just as it shouldn't use the
"Return-Path: " header. The "From " header isn't added by the MUA or
the MTA, it's actually added my the MDA. 

This isn't really relevant to this mailinglist, it should be fought
over on comp.mail.headers. IMHO, GNUS should NOT use a header which is
likly to return something you don't want to use, at least not without
querying the user first.

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