nanog mailing list archives

Re: Massive change in Public Cert behaviour coming soon


From: Michael Thomas via NANOG <nanog () lists nanog org>
Date: Sun, 18 May 2025 16:28:11 -0700


On 5/18/25 4:09 PM, Randy Bush via NANOG wrote:
I think that most contemporary MTAs use some form of (weak)
authenticated identity.  The most common that I see is reverse DNS
with forward DNS confirmation.  A less common form of (client)
authentication is username & password.
DANE


DKIM, actually. And it's not weak, modulo use of DNS with its dodgy DNSSec deployment.

Mike

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