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<br>We've noticed that the following command gets a variable result:<br><br>dig -t txt exacttarget.com @ns2.exacttarget.com +short<br><br>We get 2 results from this. Seems to be somewhat random. They are:<br><br>"v=spf1 a mx ip4:207.250.79.101 ip4:207.67.98.192/27 ip4:72.18.216.98 include:cust-spf.exacttarget.com include:salesforce.com include:message1-spf-inc.exacttarget.com include:hotels-spf-inc.exacttarget.com ip4:206.246.157.1 -all"<br>"spf2.0/pra ip4:207.250.79.101 ip4:207.67.98.192/27 ip4:72.18.216.98 include:cust-senderid.exacttarget.com include:salesforce.com include:message1-senderid-inc.exacttarget.com include:hotels-senderid-inc.exacttarget.com ip4:206.246.157.1 -all"<br><br><br>And <br><br>"spf2.0/pra ip4:207.250.79.101 ip4:207.67.98.192/27 ip4:72.18.216.98 include:cust-senderid.exacttarget.com include:salesforce.com include:message1-senderid-inc.exacttarget.com include:hotels-senderid-inc.exacttarget.com ip4:206.246.157.1 -all"<br>"v=spf1 a mx ip4:207.250.79.101 ip4:207.67.98.192/27 ip4:72.18.216.98 include:cust-spf.exacttarget.com include:salesforce.com include:message1-spf-inc.exacttarget.com include:hotels-spf-inc.exacttarget.com ip4:206.246.157.1 -all"<br><br><br>So ... the text output flips. Sometimes the spf1 entry is first ... sometimes it's second.<br><br>We are aware of at least one application that sees the spf2.0 (if it's first) and returns a neutral result for SPF testing. If the spf1 is first in the feedback it gets a pass for SPF. <br><br>ns2.exacttarget.com is running BIND 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2.<br><br>Is this a BIND bug? <br><br>Thanks,<br>Martin Meadows<br><br><br><br> </div></body>
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