New and interesting writeup on what ProtonMail flagged to GMail for replaying of email where some empty fields in the original were not DKIM'd and hence injecta

New and interesting writeup on what ProtonMail flagged to GMail for replaying of email where some empty fields in the original were not DKIM'd and hence injectable https://news.ycombinator.com/item?id=29942900 https://news.ycombinator.com/item?id=29942900 (it's not my post, but it was the first one here and deserves a comment or two as it is interesting IMO)