I have set up and run DMARC for quite a few domains and have always been at p=none, just because I never got enough confidence with existing tools. The switch to Fraudmarc has been just awesome for monitoring our DMARC implementation, and I have loved their product since they graduated Techstars. Kudos to the team for open sourcing their solution. It will definitely help improve email security for everyone!
A few years ago, I kept hearing about how email was dead and Slack and HipChat were the future.
Now email is the future, again: https://www.fastcodesign.com/90160460/google-thinks-the-futu...
and it seems like there's a new generation of ecosystem tools coming out to support email's new lease on life.
I still have a few hotmail and juno accounts -- think they'll be worth something someday now?