LSTOWN-L Archives

LISTSERV List Owners' Forum

LSTOWN-L

Options: Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

Topic: [<< First] [< Prev] [Next >] [Last >>]

Parts/Attachments: text/plain (26 lines)
Print Reply
Mime-Version:
1.0
Sender:
LISTSERV list owners' forum <[log in to unmask]>
Subject:
From:
Pete Weiss <[log in to unmask]>
Date:
Fri, 28 May 1999 11:44:51 -0400
In-Reply-To:
Content-Type:
text/plain; charset="us-ascii"
Reply-To:
LISTSERV list owners' forum <[log in to unmask]>
Thee best  method for anti-spoofing is to have a three way handshake,
which the OK mechanism allows.  Anything else is suspect, as you have
already indicated via a mail clients RETURN ADDRESS e.g., such as found
in Eudora.

On one campus-announce only list, we seem to be able to deal w/ the
following setup

* default-options= NOPOST

and with authorized subscribers being altered by the list-owner via

SET listname POST FOR authorized_userid@node

This does NOT provide three-way handshake, but it is effective for *us*.
Non-authorized posters simply get a LISTSERV-generated (I believe from
the template) nastygram.

If you're getting spoofed messages, then you need to deal with that
out-of-band, along with strong institutional policies (if originating
internally).

YMMV

/Pete Weiss -- Penn State

ATOM RSS1 RSS2