From owner-freebsd-questions Mon Dec 23 8:49:46 2002 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 0199F37B401 for ; Mon, 23 Dec 2002 08:49:44 -0800 (PST) Received: from mail.bellavista.cz (mail.bellavista.cz [62.168.44.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6890A43EDA for ; Mon, 23 Dec 2002 08:49:41 -0800 (PST) (envelope-from neuhauser@bellavista.cz) Received: from freepuppy.bellavista.cz (freepuppy.bellavista.cz [10.0.0.10]) by mail.bellavista.cz (Postfix) with ESMTP id 1EF5D28F; Mon, 23 Dec 2002 17:49:25 +0100 (CET) Received: by freepuppy.bellavista.cz (Postfix, from userid 1001) id CA8162FDBA7; Mon, 23 Dec 2002 17:49:09 +0100 (CET) Date: Mon, 23 Dec 2002 17:49:09 +0100 From: Roman Neuhauser To: Albertus Magnus Cc: freebsd-questions@freebsd.org Subject: Re: once last try Message-ID: <20021223164909.GK690@freepuppy.bellavista.cz> Mail-Followup-To: Albertus Magnus , freebsd-questions@freebsd.org References: <20021223112336.4286.qmail@web10707.mail.yahoo.com> <20021223123554.GB690@freepuppy.bellavista.cz> <200212231052.59455.st_albert@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200212231052.59455.st_albert@gmx.net> User-Agent: Mutt/1.5.1i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG # st_albert@gmx.net / 2002-12-23 10:52:59 -0500: > On Monday 23 December 2002 07:35, Roman Neuhauser wrote: > > # bsdsys@yahoo.com / 2002-12-23 03:23:36 -0800: > > > OK. I have tried unsuscribing to this mailing list and > > > re-subscribing to it and then sending e-mails to it to > > > test but my e-mails never make it. I know this e-mail > > > will make it to the list but this account is not the > > > one im having problems with. I'm having problems with > > > my POP account. if someone could help me figure out > > > what the problem is i would appreciate it. I dont get > > > any error messages back either when i try to send > > > e-mails to this list from my POP account. > > > > The freebsd.org MTA is somewhat anal about the properties of the > > other side of the SMTP connection. The name sent in EHLO/HELO > > must resolve to the address of the host, and its IP address must > > resolve to that name. This is a very successful anti-spam measure. It > > unfortunately also causes some collateral damage. > But it seems to me that there's more to it than you've described above. might be. all I know about mx1.freebsd.org is what I observed (plus what others have said on the list, which might just as well be anecdotal evidence like mine). > For example, ISTR that when I was using Pegasus Mail (Windows) I had to > change its settings so as not to put "@localhost" in the message-ID > header (or some such thing... I don't remember exactly). yes. that is against RFC 822, so mx1.freebsd.org (or hub.freebsd.org) *just might* reject such a message. > Anyway, as of now, using KDE Kmail, I have tried three different MTA's: > two ISP's and sendmail on my own FBSD box connected to the cable modem. > In each case they supply (to freebsd.org) the correct hostname which > resolves to the correct IP address, and vice versa. Yet only one gets > through. I'm not sure why... the only errors I get are something like > "connection refused" or "service unavailable" or something equally > non-specific. > > Could it be that freebsd.org checks farther back in the chain than just > the MTA that is talking to it? Or is it something else? *might*, but it probably doesn't. more likely there's something wrong with the other two MTA's (from mx1's POV at least). but, given that they already do header checks, they might as well check if one of the Received: hops is an open relay, and reject the message if so. that would keep the lists clear of spammers that are smart enough to route their shit through more than one MTA so that the one that talks to mx1.freebsd.org is deemed ok. > Maybe I should check some of the spam that does get through, and see how > they do it ;-) more interesting: post the bounces. BTW, here's an instance of the situation we're talking about: Out: 554 Service unavailable; [217.36.194.32] blocked using bl.spamcop.net, reason: Blocked - see http://spamcop.net/bl.shtml?217.36.194.32 In: HELO bigfoot.com Out: 503 Error: access denied for host217-36-194-32.in-addr.btopenworld.com[217.36.194.32] In: MAIL FROM: Out: 503 Error: access denied for host217-36-194-32.in-addr.btopenworld.com[217.36.194.32] In: RCPT TO: Out: 503 Error: access denied for host217-36-194-32.in-addr.btopenworld.com[217.36.194.32] Out: 421 Error: too many errors as an added bonus, this spammer's MTA ignored the 554 it got instead of the server greeting, the server closed the session forcefully after a configured limit of errors. and... I reported this to abuse@btopenworld.com. here's the outcome: Session aborted, reason: too many errors Out: 220 mail.bellavista.cz ESMTP Postfix In: EHLO plutonium Out: 504 : Helo command rejected: need fully-qualified hostname In: HELO plutonium Out: 504 : Helo command rejected: need fully-qualified hostname In: QUIT Out: 221 Bye it's not shown here, but plutonium should've been plutonium.btinternet.com. -- If you cc me or remove the list(s) completely I'll most likely ignore your message. see http://www.eyrie.org./~eagle/faqs/questions.html To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message