Re: Can't connect to MySQL without SSL

On 6. Aug 2026, at 0.47, dovecot--- via dovecot <dovecot@dovecot.org> wrote:

@basti require_secure_transport is OFF, I had checked that.

Hi Timo!

Creating the mysql-client.cnf didn't change the behavior, it tries to connect even with this minimal configuration:

/etc/dovecot/dovecot.conf: sql_driver = mysql

mysql host.docker.internal { option_file = /etc/dovecot/mysql-client.cnf }

/etc/dovecot/mysql-client.cnf: [client] ssl-mode=DISABLED

Still gets me an error: TLS/SSL error: self-signed certificate in certificate chain

Apparently this doesn't work with MariaDB library, and there's no workaround other than making the SSL cert work or disabling SSL on server side.