Quoth Philip Hazel on Mon, Jun 12, 2000:
> On Sat, 3 Jun 2000 james@??? wrote:
> But there is one extra point to consider, which people often forget.
> There isa a perfectly legitimate case when mail from root@???
> may arrive from outside:
>
> . root@??? sends mail to user1@???
>
> . user1@??? has a .forward file, passing the message on to
> user2@???
>
> . user2@??? has a .forward file, passing the message to
> user3@???
Or even simpler:
a@??? sends mail to b@???
b@??? has .forward passing the message to c@???
> so the message comes back to your host from outside. This kind of thing
> is much more common with mailing lists, of course.
Although mailing list usually change the envelope sender. And if
they don't, they should. The point still stands for the From:
header. But the From: header has another situation where mail
from user@??? may arrive from outside:
a@??? sends mail from b@??? using some machine outside
of the this.dom network.
Vadik.
--
If there was anything that depressed him more than his own
cynicism, it was that quite often it still wasn't as cynical as
real life.
-- Terry Pratchett, "Guards! Guards!"
