> we see sporadic DNS resolver errors for A records of > *.mail.protection.outlook.com > > Only a few per day vs many successful lookups.
I haven't noticed this, but we found out last week that Microsoft apparently has enabled a new cluster of servers for europe in networks 40.92.7[345].*. All of these currently completely lack PTR data, and the corresponding SOA suggests a last modification date of February 5, 2018: 92.40.in-addr.arpa. 3600 IN SOA ns1.msft.net. msnhst.microsoft.com. 2018020502 7200 900 2419200 3600 they pop up in logs such as this: [40.92.75.99] claimed to be EUR04-VI1-obe.outbound.protection.outlook.com and rejected connections seem to carry only freemail services (hotmail, windowslivemail). We informed SOA and whois contacts last Wednesday, but haven't heard back from them. Cheers, Markus _______________________________________________ swinog mailing list [email protected] http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
