Postfix enforces encryption from mail servers when sending messages.
Gives an error: TLS is required, but was not offered by host
Currently using the default settings from Mailcow dockerized (Version 2023-04b).
The behavior is the same when setting smtp_tls_security_level=dane/may
If the host is included in the smtp_tls_policy_maps table with the dane / may type, then letters are delivered without error.
Which Postfix configuration setting forces TLS to be required?
There is no TLSA entry in the hosts DNS zone.