From owner-freebsd-questions@FreeBSD.ORG Mon Dec 1 23:54:23 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 5D2CE16A4CE for ; Mon, 1 Dec 2003 23:54:23 -0800 (PST) Received: from smtp.covadmail.net (mx05.covadmail.net [63.65.120.65]) by mx1.FreeBSD.org (Postfix) with SMTP id 0888E43FBF for ; Mon, 1 Dec 2003 23:54:20 -0800 (PST) (envelope-from strick@covad.net) Received: (covad.net 30015 invoked from network); 2 Dec 2003 07:54:14 -0000 Received: from unknown (HELO mist.nodomain) (68.164.174.200) by sun-qmail16 with SMTP; 2 Dec 2003 07:54:14 -0000 Received: from mist.nodomain (localhost [127.0.0.1]) by mist.nodomain (8.12.9p2/8.12.9) with ESMTP id hB27sDhI000437; Mon, 1 Dec 2003 23:54:14 -0800 (PST) (envelope-from dan@mist.nodomain) Received: (from dan@localhost) by mist.nodomain (8.12.9p2/8.12.9/Submit) id hB27sDUB000436; Mon, 1 Dec 2003 23:54:13 -0800 (PST) (envelope-from dan) Date: Mon, 1 Dec 2003 23:54:13 -0800 (PST) From: Dan Strick Message-Id: <200312020754.hB27sDUB000436@mist.nodomain> To: freebsd-questions@freebsd.org cc: dan@mist.nodomain Subject: xxx 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: Tue, 02 Dec 2003 07:54:23 -0000 My ISP assigns my IP address dynamically. For this and other reasons I have to relay all my outgoing email through my ISP's SMTP email relay. I tried to enable sendmail SMTP client-side authentication on my FreeBSD 4.9 system by adding this line to my sendmail.mc file: FEATURE(`authinfo', `text -o -k0 -v1 /etc/mail/authinfo') and creating the file /etc/mail/authinfo with these contents: AuthInfo:mail.covad.net "U:userid" "P:password" (of course "userid" and "password" are not the real values). When my sendmail connects to the email relay, the email relay says (in SMTP speak): 250-covad.net 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN but there is no obvious exchange of authentication information and my ISP's email relay sometimes rejects my attempts to submit email for relay. This is a typical SMTP rejection message: 553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1) Sometimes my email gets through. I don't know why. When I send email via Netscape, Netscape does authenticate itself to the email relay. Note: I did do a "make sendmail.cf" in /etc/mail after changing the .mc file and I did restart the sendmail daemons before sending the rejected email. The authinfo file belongs to root:wheel and has mode 640. I also tried it with mode 644 just in case. I also tried creating the file /etc/mail/access with the same contents and doing "makemap hash /etc/mail/access". The sendmail.mc file contains the standard line: FEATURE(access_db, `hash -o -T /etc/mail/access') Can someone who knows how this is supposed to work help me out? Is there an SMTP authentication protocol that protects the authentication information from network snoopers? Dan Strick strick@covad.net