Subject: while we're on the subject of mailing lists...

From: Michael Thomas <[email-masked]>
Date: Tue, 5 Jan 2021 09:26:10 -0800

I wrote this about my journey back into DKIM land after finding an ARC 
header in my email and wondering what it was.

https://rip-van-webble.blogspot.com/2020/12/are-mailing-lists-toast.html

Mike