Postfix: Enable SSL if ssl/certs contains any files

[ralflang]

smtpd_use_tls = no
smtpd_tls_security_level = none
smtpd_tls_ask_ccert = no
smtpd_tls_received_header = no
smtpd_tls_chain_files =

[ikselven]

So the entrypoint script should check for certs in a predefined location inside the container and if it finds certs configure TLS for Postfix else disable TLS?

[ralflang]

Yes. The idea is to provide a mountpoint for a cert or possibly set of certs and have the container autoconfigure based on that, with very limited need to also provide a custom config for most use cases.