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internetstandards / toolbox-wiki

Internet.nl toolbox - how-to's for modern mail security standards (DMARC, DKIM, SPF and DANE)
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Include advise to add TLSA 2 1 1 for Let's Encrypt emergency backup R4 and E2 #16

Open bwbroersma opened 1 year ago

bwbroersma commented 1 year ago

See https://dnssec-stats.ant.isi.edu/~viktor/x3hosts.html and https://mail.sys4.de/pipermail/dane-users/2020-September/000579.html about including the TLSA 2 1 1 for Let's Encrypt emergency backup E2 and R4 intermediate certificates (inactive backup intermediates, see https://letsencrypt.org/certificates/).

bwbroersma commented 8 months ago

Also see https://github.com/internetstandards/Internet.nl/issues/1206#issuecomment-1855621488