mailop> just a quick note that deliverability to domains in the .de zone mailop> is currently limited due to dns(sec) issues at DENIC.
It seems to be working again at the moment. 9.9.9.9 (quad9) and 1.1.1.1 (cloudflare) also put in NTAs (Negative Trust Anchors) to work around it. 8.8.8.8 (google) didn't ever put one in. https://datatracker.ietf.org/doc/html/rfc7646 cloudflare is currently leaving theirs on in an abundance of caution. quad9 has taken it back off but is watching closely in case they need to put it back. for folks running their own recursive validating resolvers, read your docs for how to configure an NTA if you need one (but read the RFC first to see how it should and shouldn't be used). _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
