TLS handshake fails ("SSL_accept:error in error") for server->server connection (smtp submit dovecot->postfix) if /etc/pki/tls/openssl.cnf "Options=" includes 'ServerPreference' ?

Viktor Dukhovni openssl-users at
Fri Sep 25 21:31:53 UTC 2020

On Fri, Sep 25, 2020 at 10:01:18AM -0700, PGNet Dev wrote:

> > Where's the recording of the successful transmission to port 465 (and
> > not say 587).
> you asked for a capture of the _failed_ transaction.

I had intended to ask for both, hard to compare otherwise.  Good luck.


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