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Hi Matt,<br>I've checked the /etc/resolv.conf (on SLES they put the file in /etc instead of where other distro may have it.<br>It does resolve both mail.mmtnetworks.com.au and mmtnetworks.com.au to the same IP address<br><br>; <<>> DiG 9.3.4 <<>> mmtnetworks.com.au<br>;; global options: printcmd<br>;; Got answer:<br>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60691<br>;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0<br><br>;; QUESTION SECTION:<br>;mmtnetworks.com.au. IN A<br><br>;; ANSWER SECTION:<br>mmtnetworks.com.au. 86170 IN A 203.153.225.77<br><br>;; Query time: 106 msec<br>;; <b>SERVER: 139.130.4.4</b>#53(139.130.4.4)<br>;; WHEN: Wed Feb 3 11:52:15 2010<br>;; MSG SIZE rcvd: 52<br><br><br>; <<>> DiG 9.3.4 <<>> <b>mail.mmtnetworks.com.au</b><br>;; global options: printcmd<br>;; Got answer:<br>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41109<br>;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0<br><br>;; QUESTION SECTION:<br>;mail.mmtnetworks.com.au. IN A<br><br>;; ANSWER SECTION:<br>mail.mmtnetworks.com.au. 86400 IN A 203.153.225.77<br><br>;; Query time: 326 msec<br>;; <b>SERVER: 139.130.4.4</b>#53(139.130.4.4)<br>;; WHEN: Wed Feb 3 11:49:04 2010<br>;; MSG SIZE rcvd: 57<br><br>I'm using both telstra (primary) and amnet (secondary) name servers for the resolv.conf.<br><br>when I send an email to myself from another location this is what I see in the logs:<br>Feb 3 11:58:36 mmtlnx postfix/smtpd[24887]: connect from mail.desborough.com.au[203.161.81.22]<br>Feb 3 11:58:37 mmtlnx postfix/smtpd[24887]: 260CB1E0E5: client=mail.desborough.com.au[203.161.81.22]<br>Feb 3 11:58:37 mmtlnx postfix/cleanup[24923]: 260CB1E0E5: hold: header Received: from mail.desborough.com.au (mail.desborough.com.au [203.161.81.22])??by mmtlnx.mmtnetworks.com.au (Postfix) with ESMTP id 260CB1E0E5??for <jlmiller@mmtnetworks.com.au>; Wed, 3 Feb 2010 11: from mail.desborough.com.au[203.161.81.22]; from=<jlmiller@desborough.com.au> to=<jlmiller@mmtnetworks.com.au> proto=ESMTP helo=<mail.desborough.com.au><br>Feb 3 11:58:37 mmtlnx postfix/cleanup[24923]: 260CB1E0E5: hold: header Received: from ts1 (unknown [192.168.5.6])??by mail.desborough.com.au (Postfix) with ESMTP id 398731698F??for <jlmiller@mmtnetworks.com.au>; Wed, 3 Feb 2010 12:22:23 +0800 (WST) from mail.desborough.com.au[203.161.81.22]; from=<jlmiller@desborough.com.au> to=<jlmiller@mmtnetworks.com.au> proto=ESMTP helo=<mail.desborough.com.au><br>Feb 3 11:58:37 mmtlnx postfix/cleanup[24923]: 260CB1E0E5: message-id=<003201caa485$8e0b47b0$0605a8c0@healeyco.local><br>Feb 3 11:58:37 mmtlnx postfix/smtpd[24887]: disconnect from mail.desborough.com.au[203.161.81.22]<br><br>The mail goes into the queue, but is not delivered.<br><br>Jon<br><br><br><br>> Date: Wed, 3 Feb 2010 11:34:46 +0800<br>> From: zombie@penguincare.com.au<br>> To: plug@plug.org.au<br>> Subject: Re: [plug] cannot send mail to certain domains<br>> <br>> Hi Jon<br>> <br>> On Mon, 1 Feb 2010, quoth Jon L Miller:<br>> <br>> > Feb 1 11:28:15 mmtlnx postfix/smtp[31353]: EA83736CEB:<br>> > to=<maria_louisedking@yahoo.com>, relay=none, delay=7749, status=deferred<br>> > (Host or domain name not found. Name service error for name=yahoo.com<br>> > type=MX: Host not found, try again)<br>> <br>> Your postfix is having trouble resolving these domains - check what <br>> nameserver is being defined in /var/spool/postfix/etc/resolv.conf (which <br>> is normally generated from /etc/resolv.conf upon postfix loading) and make <br>> sure that nameserver is working correctly. If necessary, change that to <br>> another (eg your ISP's nameserver)<br>> <br>> - Matt<br>> _______________________________________________<br>> PLUG discussion list: plug@plug.org.au<br>> http://www.plug.org.au/mailman/listinfo/plug<br>> Committee e-mail: committee@plug.linux.org.au<br> </body>
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