While postfix happily ignores completely unknown settings (e.g. if the
config contains settings not present in an older version of postfix),
the allowed values are handled more strict:
```
fatal: bad boolean configuration: smtpd_forbid_bare_newline = normalize
```
is the result of running this configuration on postfix < 3.7.10 (for
bookworm)
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
pmg-docs,
pmg-gui,
pmg-log-tracker,
- postfix (>= 2.5.5),
+ postfix (>= 3.7.10),
postgresql-15,
proxmox-backup-client (>= 2.2.0),
proxmox-mini-journalreader (>= 1.3-1),