This means that the client didn't present a valid TLS certificate to be
used for authentication during the TLS exchange. I'm guessing very few
clients are configured for TLS auth, so what you're seeing is normal and
nothing to be concerned about.
On 05/19/2016 02:05 AM, Johannes Eckhardt via Info-cyrus wrote:
Hi,
I'm using cyrus-imap version 2.4.17. StartTLS is configured and
working but I often see the following messages in my logfiles:
starttls: TLSv1.2 with cipher AES128-SHA256 (128/128 bits new) no
authentication
starttls: TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits
new) no authentication
Can anyboy tell me what that means? Am I missing something in my
configuration?
Best,
Johannes
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Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University
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