Sounds about right. I tend to avoid using Norton DNS, OpenDNS or any other non-compliant DNS service on mail gateways. They're ok for home setups and web proxies, sometimes. Mail servers require more adherence to standards.<br>
<br><div class="gmail_quote">On Mon, Feb 11, 2013 at 3:44 PM, Jerry Benton <span dir="ltr"><<a href="mailto:jerry.benton@mailborder.com" target="_blank">jerry.benton@mailborder.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I was thinking along similar lines. Not a specific DNS server solution, but more along the lines of a DNS or connectivity interruption. <br><div class="HOEnZb"><div class="h5"><br>On Monday, February 11, 2013, Raymond Dijkxhoorn <<a href="mailto:raymond@prolocation.net" target="_blank">raymond@prolocation.net</a>> wrote:<br>
> Hai!<br>><br>> My bet is that you use opendns as dns server? Correct?<br>><br>> Thanks,<br>> Raymond Dijkxhoorn, Prolocation<br>><br>> Op 11 feb. 2013 om 20:11 heeft "Harondel J. Sibble" <<a href="mailto:mailscanner@pdscc.com" target="_blank">mailscanner@pdscc.com</a>> het volgende geschreven:<br>
><br>>> Anyone using <a href="http://zen.spamhaus.org" target="_blank">zen.spamhaus.org</a> rbl in MS and at the MTA level, noticing<br>>> weirdness over the past say week or so?<br>>><br>>> Here's a couple of MTA level examples I've been seeing<br>
>><br>>> Feb 11 06:07:14 ranger1 postfix/smtpd[13327]: NOQUEUE: reject: RCPT from<br>>> <a href="http://alias8.phx2-aud-mta-out5.cnet.com" target="_blank">alias8.phx2-aud-mta-out5.cnet.com</a>[216.239.122.68]: 554 5.7.1 Service<br>
>> unavailable; Client host [216.239.122.68] blocked using <a href="http://zen.spamhaus.org" target="_blank">zen.spamhaus.org</a>;<br>>> from=<<a href="mailto:newsletters@zdnet.online.com" target="_blank">newsletters@zdnet.online.com</a>> to=<<a href="mailto:zdnet@pdscc.com" target="_blank">zdnet@pdscc.com</a>> proto=ESMTP<br>
>> helo=<<a href="http://alias8.phx2-aud-mta-out5.cnet.com" target="_blank">alias8.phx2-aud-mta-out5.cnet.com</a>><br>>><br>>> Feb 11 07:56:19 ranger1 postfix/smtpd[16391]: NOQUEUE: reject: RCPT from<br>
>> <a href="http://lists.freeswitch.org" target="_blank">lists.freeswitch.org</a>[198.22.64.215]: 554 5.7.1 Service unavailable; Client<br>
>> host [198.22.64.215] blocked using <a href="http://zen.spamhaus.org" target="_blank">zen.spamhaus.org</a>;<br>>> from=<<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>> to=<<a href="mailto:help@pdscc.com" target="_blank">help@pdscc.com</a>><br>
>> proto=ESMTP helo=<<a href="http://lists.freeswitch.org" target="_blank">lists.freeswitch.org</a>><br>>><br>>> These are from mailing lists primarily, and if I check the ip address noted<br>>> in the mxtoolbox blacklist check or enter the ip at the spamhaus site, there<br>
>> is no listing, WTF????<br>>><br>>> --<br>>> Harondel J. Sibble<br>>> Sibble Computer Consulting<br>>> Creating Solutions for the small and medium business computer user.<br>>> <a href="mailto:help@pdscc.com" target="_blank">help@pdscc.com</a> (use pgp keyid 0x3AD5C11D) <a href="http://www.pdscc.com" target="_blank">http://www.pdscc.com</a><br>
>> Blog: <a href="http://www.pdscc.com/blog" target="_blank">http://www.pdscc.com/blog</a><br>>> <a href="tel:%28604%29%20739-3709" value="+16047393709" target="_blank">(604) 739-3709</a> (voice)<br>>><br>
>> --<br>>> MailScanner mailing list<br>>> <a href="mailto:mailscanner@lists.mailscanner.info" target="_blank">mailscanner@lists.mailscanner.info</a><br>
>> <a href="http://lists.mailscanner.info/mailman/listinfo/mailscanner" target="_blank">http://lists.mailscanner.info/mailman/listinfo/mailscanner</a><br>>><br>>> Before posting, read <a href="http://wiki.mailscanner.info/posting" target="_blank">http://wiki.mailscanner.info/posting</a><br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><br>--<br><br>Alex Neuman van der Hans<br>Reliant Technologies / Vida Digital<br><a href="http://vidadigital.com.pa/" target="_blank">http://vidadigital.com.pa/</a><br>
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