On 17/04/2024 12:42 EEST Marc via dovecot <dovecot@dovecot.org>
wrote:
No they aren't. The *host part* is case insensitive because
the DNS is,
Indeed. Letsencrypt is utilizing this characteristic, they query the
same hostname every time with different randomized(?)
capitalizations. I have no idea what the logics behind this is.
Preventing this from showing in logs? Preventing rate limiters to be
triggered? No idea why they do this.
>, but erroneously slip onto <SHIFT> or <CAPSLOCK> all
the time, I suppose ...),
:D
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This is a DNS hardening thing to make it harder to spoof replies. DNS name
comparison is still case insensitive.
Aki
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