From: Erland Sommarskog (sommar-usefor@algonet.se)
Date: Sun Feb 03 2002 - 10:33:43 CST
"Shmuel (Seymour J.) Metz" <Shmuel+gen@Patriot.Net> writes:
> In <20020119204938.17877.qmail@wilhelmina.algonet.se>, on 01/19/2002
> at 08:49 PM, sommar-usefor@algonet.se (Erland Sommarskog) said:
>
> >And that username/password happens to be associated with a mail
> >address.
>
> No. A news server is not a mail server. The authentication information
> on the mail server(s) that the user has access to might be completely
> different.
Yes, might. No one is denying that there are cases when the news server
has no information of any mailbox.
However, when I log into my ISP and post from their news server, they
will be able to find out that it was sommar@algonet.se who posted. Whether
the news server actually can access that information at injection time,
I don't know, but it is not implausible that it could.
Note here that any adderss I may have elsewhere is irrelevant.
> Further, a single user/password pair might allow him to use any of
> a number of email addresses; which is the *one* associated with him?
All of them. If the news server can verify that the address you
are using belongs to you, it does not insert a Sender. If it can't
verify, it will insert one of the addresses it knows about, according
to some default scheme.
Provided that the server is actually inserting Sender in this case,,
that is.
-- Erland Sommarskog, Stockholm, sommar@algonet.se