I was thinking along similar lines. Not a specific DNS server solution, but more along the lines of a DNS or connectivity interruption. <br><br>On Monday, February 11, 2013, Raymond Dijkxhoorn <<a href="mailto:raymond@prolocation.net">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">mailscanner@pdscc.com</a>> het volgende geschreven:<br>
><br>>> Anyone using <a href="http://zen.spamhaus.org">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">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">zen.spamhaus.org</a>;<br>>> from=<<a href="mailto:newsletters@zdnet.online.com">newsletters@zdnet.online.com</a>> to=<<a href="mailto:zdnet@pdscc.com">zdnet@pdscc.com</a>> proto=ESMTP<br>
>> helo=<<a href="http://alias8.phx2-aud-mta-out5.cnet.com">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">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">zen.spamhaus.org</a>;<br>>> from=<<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org">freeswitch-users-bounces@lists.freeswitch.org</a>> to=<<a href="mailto:help@pdscc.com">help@pdscc.com</a>><br>
>> proto=ESMTP helo=<<a href="http://lists.freeswitch.org">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">help@pdscc.com</a> (use pgp keyid 0x3AD5C11D) <a href="http://www.pdscc.com">http://www.pdscc.com</a><br>
>> Blog: <a href="http://www.pdscc.com/blog">http://www.pdscc.com/blog</a><br>>> (604) 739-3709 (voice)<br>>><br>>> --<br>>> MailScanner mailing list<br>>> <a href="mailto:mailscanner@lists.mailscanner.info">mailscanner@lists.mailscanner.info</a><br>
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>><br>>> Support MailScanner development - buy the book off the website!<br>> --<br>> MailScanner mailing list<br>> <a href="mailto:mailscanner@lists.mailscanner.info">mailscanner@lists.mailscanner.info</a><br>
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><br>> Support MailScanner development - buy the book off the website!<br>>