DMARC and mailing lists: We survived!

It's been a little over a year since Yahoo and AOL implemented restrictive "p=reject" DMARC policies, saying you essentially aren't allowed to use their domains outside of their infrastructure. Death to mailing lists was predicted; but what seems to have actually happened is, popular mailing list software was updated to handle the new way of things. Google Groups and Yahoo Groups were quickly updated to handle mailing list posts from users at DMARC-restrictive domains. Mailman version 2 was updated at about the same time.