On Tuesday, April 19, 2022 12:00:19 AM EDT Scott Kitterman wrote: > > Concern 2 > > Since the longest current PSL entry has 5 segments, the longest > > organizational domain is 6 segments. The "jump to 5" logic needs to be > > changed to "jump to 6". > > What PSL entries that are 5 long are you worried about? When we looked at > this before, 5 seemed sufficient. Changing the number, now, isn't a big > deal.
OK, I checked. Here's the list: *.compute.amazonaws.com.cn cn-north-1.eb.amazonaws.com.cn cn-northwest-1.eb.amazonaws.com.cn *.elb.amazonaws.com.cn s3.cn-north-1.amazonaws.com.cn s3.dualstack.ap-northeast-1.amazonaws.com s3.dualstack.ap-northeast-2.amazonaws.com s3.dualstack.ap-south-1.amazonaws.com s3.dualstack.ap-southeast-1.amazonaws.com s3.dualstack.ap-southeast-2.amazonaws.com s3.dualstack.ca-central-1.amazonaws.com s3.dualstack.eu-central-1.amazonaws.com s3.dualstack.eu-west-1.amazonaws.com s3.dualstack.eu-west-2.amazonaws.com s3.dualstack.eu-west-3.amazonaws.com s3.dualstack.sa-east-1.amazonaws.com s3.dualstack.us-east-1.amazonaws.com s3.dualstack.us-east-2.amazonaws.com app.os.stg.fedoraproject.org users.scale.virtualcloud.com.br it1.eur.aruba.jenv-aruba.cloud cloud.jelastic.open.tim.it functions.fnc.fr-par.scw.cloud nodes.k8s.fr-par.scw.cloud nodes.k8s.nl-ams.scw.cloud nodes.k8s.pl-waw.scw.cloud I don't think any of these are a problem. Worst case registered domains under these PSDs will need to publish a record for their subdomains, but I don't see any evidence (after a quick look) any of these are used in email. Shorter than this, you do start to see names that reasonably might appear in email such as: schools.nsw.edu.au pvt.k12.ma.us chtr.k12.ma.us paroch.k12.ma.us I think 5 is the right number. Scott K _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
