From owner-freebsd-questions Sun Feb 22 13:20:22 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA14829 for freebsd-questions-outgoing; Sun, 22 Feb 1998 13:20:22 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from mail.netcetera.dk (root@sleipner.netcetera.dk [194.192.207.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA14729 for ; Sun, 22 Feb 1998 13:20:06 -0800 (PST) (envelope-from leifn@image.dk) Received: (from uucp@localhost) by mail.netcetera.dk (8.8.8/8.8.8) with UUCP id VAA11756 for freebsd-questions@freebsd.org; Sun, 22 Feb 1998 21:31:42 +0100 Received: by swimsuit.swimsuit.roskildebc.dk (0.99.970109) id AA03819; 22 Feb 98 21:33:40 +0100 From: leifn@image.dk (Leif Neland) Date: 22 Feb 98 20:56:03 +0100 Subject: sendmail rules Message-ID: Organization: Fidonet: Swimsuit Safari. Go for it. To: freebsd-questions@FreeBSD.ORG Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG There are rules which say the domain must resolve for sender and receiver. There are rules which deny relaying. But are there rules which ensure the sender is an user of this machine by checking the username? I now get spam which claim to come from a non-existing user of my isp, i.e. 85231.@image.dk. Does a rule exist, which can stop _this_ kind of faking? Leif Neland leifn@image.dk --- |Fidonet: Leif Neland 2:234/49 |Internet: leifn@image.dk To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message