The real reason is that you have misconfigured your cert. Alert 42 means that the *client* consider *server* client untrusted.
If you are using LE cert you should configure ssl_cert=</etc/letsencrypt/live/domain/fullchain.pem ssl_key=</etc/letsencrypt/live/domain/privkey.pem Aki > On 25/05/2020 18:01 Hanasaki Jiji <hanas...@gmail.com> wrote: > > > From the config : auth_ssl_require_client_cert = no > GMail empty vcard ... I have no ideas . so sorry. > > Coding snippets. What can I provide for you that will help? > NOTE: it is pretty much the default config from Debian. > > Thank you, > > On Sun, May 24, 2020 at 9:29 PM Benny Pedersen <m...@junc.eu> wrote: > > > > On 2020-05-25 02:54, hanas...@gmail.com wrote: > > > Config has > > > ssl_verify_client_cert = no > > > What options might have the client auth turned on? > > > > why does gmail attacht empty vcard info ? > > > > without any config snippes its hard to say what config error is local > > > > https://wiki.dovecot.org/SSL/DovecotConfiguration > > > > is it auth_ssl_require_client_cert = yes > > > > i dont use this auth features to make thunderbird work