Alexander Vasarab:
> Greetings,
>
> I recently upgraded postfix and OpenSSL to 3.4.10 and 1.1.1d,
> respectively. These versions align with Debian GNU/Linux 10 (buster).
> Since the upgrade I've begun receiving regular log entries that look
> like this:
>
> May 11 11:23:54 vasaconsulting postfix/smtpd[21870]: warning: TLS library
> problem: error:140E0197:SSL routines:SSL_shutdown:shutdown while in
> init:../ssl/ssl_lib.c:2086:
>
> These happen both when receiving and sending messages.
The remote peer sent a TLS shutdown message during the TLS handshake.
There is no way to 'continue' the handshake.
Maybe the remote peer times out - you could find out by looking at
the TIME STAMPS in your logs. Causes for timeout: your server is
slow, or your network has packet loss.
Wietse
