From owner-freebsd-questions Wed Jun 19 8:41:30 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mail.samuelstn.dhs.org (h24-64-81-248.cg.shawcable.net [24.64.81.248]) by hub.freebsd.org (Postfix) with SMTP id 9E7F537B406 for ; Wed, 19 Jun 2002 08:41:24 -0700 (PDT) Received: (qmail 50999 invoked from network); 19 Jun 2002 15:41:22 -0000 Received: from firewall (HELO SAMCHOW1.ca.nortel.com) (192.168.1.1) by homeserver with SMTP; 19 Jun 2002 15:41:22 -0000 Message-ID: <00a101c217a8$0ba06200$2784412f@ca.nortel.com> From: "Samuel Chow" To: "Andrew" Cc: References: <13239307310.20020619150831@ukrpost.net> Subject: Re: Mail Date: Wed, 19 Jun 2002 09:43:21 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 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 Hi there, > >> I cannot send message to one host. My smtp server is running > >> qmail. I see in logs "451 unresolvable relay host name check your > >> setup". > > > > well, your smtp server's name doesn't resolve, probably. > > It does. The only thing is that my smtp hostname is > mail.mydomain.com while users set their From to @mydomain.com. > > Could this be a problem? I have no way to setup up DNS record > mydomain.com to smtp's IP. There isn't a whole lot of details, so I am just guessing here. I think the problem was the remote SMTP server was doing a DNS lookup on the hostname your qmail passed along. That hostname, unfortunately, did not resolve. Therefore, the remote SMTP server refused to accept mail from you. If this is indeed the problem, put a resolvable hostname into the 'helohost' configure file, and restart qmail. --- Samuel Chow cyschow@shaw.ca This message is displayed using recycled electrons. Segmentation Fault (core dumped) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message