Just in case it helps someone.
I was getting this failure under Debian 12. And no detailed error available. Nothing on journalctl and /var/log files are not used under Debian 12.
After trying this and that from internet posts I saw one post that talked about certificates.
As I do weird stuff with my certificates I checked and that was it. I had a file on /etc/ssl/certificates that was not a certificate, was a mistake because it was a private key, not a certificate.
Removed the file, uninstall postfix, re-install and problem solved.
I was getting this failure under Debian 12. And no detailed error available. Nothing on journalctl and /var/log files are not used under Debian 12.
After trying this and that from internet posts I saw one post that talked about certificates.
As I do weird stuff with my certificates I checked and that was it. I had a file on /etc/ssl/certificates that was not a certificate, was a mistake because it was a private key, not a certificate.
Removed the file, uninstall postfix, re-install and problem solved.
Statistics: Posted by lantolin — 2026-02-19 11:16