This particular issue has been resolved silently without anyone contacting me so I am guessing it was a result of me posting here.
There are other IPs that also suffer the same issue. Another example is: p02c11m061.mxlogic.net is supposed to be 208.65.144.235 but it isn't. Can whomever is lurking here from MXLogic/McAfee please check all of the hostnames you are using for helo to make sure they resolve? -----Original Message----- From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Drew Weaver Sent: Friday, November 20, 2015 10:51 AM To: 'mailop@mailop.org' <mailop@mailop.org> Subject: [mailop] Mcafee misconfigured DNS on MXLogic IP addresses Earlier this week they started delivering email to us from a server that indicates that it's hostname is mxl144v237.mxlogic.net and it's IP address is 208.65.144.237 The problem is mxl144v237.mxlogic.net isn't a valid hostname, which results in: maillog:Nov 20 10:31:36 localhost postfix/smtpd[22058]: warning: 208.65.144.237: hostname mxl144v237.mxlogic.net verification failed: Name or service not known maillog:Nov 20 10:31:38 localhost postfix/smtpd[22090]: warning: 208.65.144.237: hostname mxl144v237.mxlogic.net verification failed: Name or service not known maillog:Nov 20 10:31:45 localhost postfix/smtpd[22091]: warning: 208.65.144.237: hostname mxl144v237.mxlogic.net verification failed: Name or service not known maillog:Nov 20 10:31:47 localhost postfix/smtpd[22095]: warning: 208.65.144.237: hostname mxl144v237.mxlogic.net verification failed: Name or service not known maillog:Nov 20 10:32:18 localhost postfix/smtpd[22058]: warning: 208.65.144.237: hostname mxl144v237.mxlogic.net verification failed: Name or service not known maillog:Nov 20 10:32:37 localhost postfix/smtpd[22080]: warning: 208.65.144.237: hostname mxl144v237.mxlogic.net verification failed: Name or service not known Sooo anyone who has this particular check configured in Postfix has been null routing email for the last week or so. _______________________________________________ mailop mailing list mailop@mailop.org http://chilli.nosignal.org/mailman/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org http://chilli.nosignal.org/mailman/listinfo/mailop
