Hello.
Am 14.09.2022 um 13:59 schrieb Christian Mack:
Sound to me, as if Thunderbird does not know the CA used to (self) sign
that server certificate.
Following the documentation at
https://community.letsencrypt.org/t/simple-guide-using-lets-encrypt-ssl-certs-with-dovecot/2921
I configured
ssl_cert = </etc/letsencrypt/live/...../fullchain.pem
ssl_key = </etc/letsencrypt/live/...../privkey.pem
to my Let's Encrypt SSL certificates and did a restart of Dovecont and
at least for one installation of Thunderbird it seems to work again now.
For the other installations I need to check later at home, but the
problem seems to be resolved.
Regards,
Meikel
