Aside from today's outage, the DNS for mail.protetion.office.com seems to have been very poor for a long time. As an example from 2020, Brian Somers lamented its state:-
https://lists.dns-oarc.net/pipermail/dns-operations/2020-April/020124.html The scale of the general problem (after this fault has been fixed) can be seen at:- https://www.zonemaster.fr/result/e46bf2d6d1d70989 As MS is a Silver member of DNS-OARC, are there any MS folks on here who might be involved with the authoratitive side of mail.protection.office.com, or who might be able to get the issue raised internally at MS? Alternatively, is this the sort of issue in which DNS-OARC could become involved by way of outreach to MS about the problems? The lack of EDNS0 will probably become an increasing problem over time. This DNS setup is used for ALL email to Office365 business users, which is not a small quantity. -- Best wishes, Matthew _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations
