[–] yatralalala 1y ago ↗ TLDR: they're used as a revocation mechanism for DKIM.non "paywalled" link: https://threadreaderapp.com/thread/1852021884902138123.html
[–] gnabgib 1y ago ↗ Small discussion a month ago (15 points, 10 comments) https://news.ycombinator.com/item?id=41630461
2 comments
[ 2.5 ms ] story [ 11.9 ms ] threadnon "paywalled" link: https://threadreaderapp.com/thread/1852021884902138123.html