Re: [swinog] Mail to CNAME a thing?
Short update on this problem, which should be fixed by now: - I was able to reach the responsible team, and they answered very quickly. I was positively surprised! - They confirmed there's a problem with the zone content on their Dyn nameservers - They then added additional NS records on level msa.msidentity.com to point only to Akamai servers (overriding the 50:50 split for msidentity.com) - The result now is that mail.msa.msidentity.com gets resolved only bei Akamai servers, and should thus resolve reliably. I don't know the reason why they couldn't just fix the zone copy that gets distributed to the Dyn servers, but the workaround fixed the problem at hand, so problem solved :) Congrats to the Microsoft AAD Network SRE team, I didn't hope to get any answer, but they took care of the problem right away! Cheers, Markus ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] Mail to CNAME a thing?
there is actually one DNS service company providing Aname records .. basically a records with following an other A Record the getting notifyed when de A record changes and change the Aname record the very advantage is faster DNS resolve times and eliminating the need of Cname at all. and allows even using an Mailserver behind an Dynamic IP my small input ;) On 19/02/2018 08:46, Markus Wild wrote: Hello Ralph [TL;DR] ;-) sorry about that, but it's not about an MX to a CNAME, it's about the domain part being resolved directly via a CNAME (kind of like having a domain-level CNAME to another domain, except _THAT_ isn't allowed due to shadowing NS and SOA records). With something like "accountprotection.microsoft.com" they're probably not breaking that rule though. When you have time, I'd welcome an answer to my question ;) Cheers, Markus ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
