Continuing the discussion from Self-hosted mail-receiver update following Let's Encrypt root certificate change:
After updating mail-receiver to latest
./launcher logs mail-receiver errors out after
postfix/postfix-script: warning: symlink leaves directory: /etc/postfix/./makedefs.out <20>Oct 1 06:10:33 postfix/postfix-script: warning: symlink leaves directory: /etc/postfix/./makedefs.outStarting Postfix
and doesn’t show any other events (incoming emails, rejected emails, …).
I’ve encountered some issues with custom postfix settings (which worked flawlessly prior to recent update) and need to debug, which is difficult without logs.