From owner-freebsd-chat Wed Mar 18 10:30:48 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id KAA28162 for freebsd-chat-outgoing; Wed, 18 Mar 1998 10:30:48 -0800 (PST) (envelope-from owner-freebsd-chat@FreeBSD.ORG) Received: from horst.bfd.com (horst.bfd.com [204.160.242.10]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id KAA28155 for ; Wed, 18 Mar 1998 10:30:45 -0800 (PST) (envelope-from ejs@bfd.com) Received: from harlie.bfd.com (bastion.bfd.com [204.160.242.14]) by horst.bfd.com (8.8.8/8.8.8) with SMTP id KAA03354 for ; Wed, 18 Mar 1998 10:30:45 -0800 (PST) (envelope-from ejs@bfd.com) Date: Wed, 18 Mar 1998 10:30:45 -0800 (PST) From: "Eric J. Schwertfeger" To: chat@FreeBSD.ORG Subject: Spam containment suggestion Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org My spam filters got a lot more effective yesterday (doing very demented and demanding checks like an AOL dialup *MUST* relay through .*.mx.aol.com, and must be From:.*@aol.com) and the best check so far seems to be to insist that if something comes to me through a list (as checked by the Sender: line, that the name of the list must be on the To: or CC: line. Would this be a reasonable (and possible) restriction to be implemented by the list itself? I really don't see a good use for BCCing mailing lists, and would be more effective than me trying to do the same, because I don't know when a new mail alias for @freebsd.org is going to pop up, or when a new mailing list will go up. On a side note, unfortunately, I can't do this on all my email, since I am on quite a few informal lists. However, I can most certainly do this for my webmaster@.* addresses, since those should never be BCC'ed to me. On another sidenote, this filter tripped me up a time or two, mostly because it seems people use different addresses for the lists: @freebsd.org, @hub.freebsd.org, and @freefall.freebsd.org, so far. Just letting you know in case anyone else decides to filter the same way. My current procmail rule: :0E * ^Sender: owner-freebsd-[a-z]+@FreeBSD\.ORG * !^(to|cc):.* (freebsd-)?[a-z]+@(hub\.|freefall\.)?freebsd\.org { SPAMMER="via FreeBSD list but not to FreeBSD list" LOG="[$SPAMMER]" } An enumeration of the Freebsd lists would probably be better than [a-z]+, since that will still match friends@, but this will catch the spammers that use periods and numbers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message