[BBLISA] ISPs with p=reject DMARC policies?

[John Miller]

Hi folks,

We operate tons of mailing lists here at Brandeis, and occasionally we
get a Yahoo or AOL user trying to send to one of them.  SInce both
yahoo.com and aol.com have p=reject in their DMARC records, their
users' mail will bounce.  No news there.

What I am curious about is if any other ISPs have taken up the
p=reject gauntlet in the past year or so.  I haven't seen any big news
about it, but I'm not touching mail servers on a daily basis.  Any of
you who are: are their other ISPs we need to be concerned with other
than Yahoo and AOL?

John