On Mon, Dec 16, 2024 at 04:06:10AM -0500, postfix--- via Postfix-users wrote:
> Just to double check this isn't a configuration library issue on my end?
> Someone is messing around? I have dozens of these repeated in the logs.
You've recently installed an updated OpenSSL package on your system.
> Dec 15 23:07:50 host postfix/smtpd[3181]: warning: run-time library vs.
> compile-time header version mismatch: OpenSSL 3.2.0 may not be compatible
> with OpenSSL 3.0.0
But you did not also upgrade Postfix, which was built with OpenSSL
3.0.0. So Postfix issues a warning that the new OpenSSL libraries are
not what it was built with. More recent Postfix releases will accept
the same OpenSSL "major number" (if 3 or higher), provided the
"minor.micro" number did not move backward.
> [root@host]# openssl version
> OpenSSL 3.2.2 4 Jun 2024 (Library: OpenSSL 3.2.2 4 Jun 2024)
If you upgrade to the latest major supported version of your OS,
it should include a Postfix built against the provided OpenSSL,
and it may be recent enough that the warnings won't repeat on
"minor" OpenSSL updates.
--
Viktor.
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