Yahoo is placing ymail.com and rocketmail.com into p=reject on November 2nd. You can read the announcement here: http://lists.dmarc.org/pipermail/dmarc-discuss/2015-October/003239.html
This information is being provided to give people and companies time to prepare, as the #1 piece of feedback from when Yahoo moved yahoo.com to a p=reject was that Yahoo didn’t let the Internet know about the move in advance.
Hopefully this announcement will ease any pain that users of ymail.com and rocketmail.com might have when sending email from infrastructure that is not authorized by Yahoo.
