From owner-freebsd-questions@FreeBSD.ORG Wed Jun 4 06:12:11 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5888E37B401 for ; Wed, 4 Jun 2003 06:12:11 -0700 (PDT) Received: from ei.bzerk.org (ei.xs4all.nl [213.84.67.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id C48EC43FA3 for ; Wed, 4 Jun 2003 06:12:05 -0700 (PDT) (envelope-from ruben@bzerk.org) Received: from ei.bzerk.org (BOFH@localhost [127.0.0.1]) by ei.bzerk.org (8.12.9/8.12.9) with ESMTP id h54DBAJK017666; Wed, 4 Jun 2003 15:11:10 +0200 (CEST) (envelope-from ruben@ei.bzerk.org) Received: (from ruben@localhost) by ei.bzerk.org (8.12.9/8.12.9/Submit) id h54DB5nZ017665; Wed, 4 Jun 2003 15:11:05 +0200 (CEST) Date: Wed, 4 Jun 2003 15:11:05 +0200 From: Ruben de Groot To: Doug Silver Message-ID: <20030604131104.GA17584@ei.bzerk.org> References: <200306031515.53366.dsilver@urchin.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200306031515.53366.dsilver@urchin.com> User-Agent: Mutt/1.4.1i cc: freebsd-questions@freebsd.org Subject: Re: Locking down secondary mx sendmail X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jun 2003 13:12:11 -0000 On Tue, Jun 03, 2003 at 03:16:15PM -0700, Doug Silver typed: > It seems the spammers like to target secondary mx machines and let those > machines relay the email to the primary machine. I've tried setting up the > virtusertable file to at least reject invalid emails on the secondary mx > machine, but it seems that sendmail bypasses that when it's doing mx relaying > for that domain. So, does anyone have some suggestions to partially lock > down mx relay machines? Do you have something like VIRTUSER_DOMAIN_FILE(`/etc/mail/virtualdomains') in your secondary mx machine's .mc file? After that remake sendmail.cf and put the right domain names in '/etc/mail/virtualdomains' I haven't tried this but I think it should work. greetings, Ruben > TIA > > -doug > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" -- Howe's Law: Everyone has a scheme that will not work.