docker-mx-server/opendkim/config.sql/opendkim.conf

AutoRestart             Yes
AutoRestartRate         10/1h
UMask                   002
Syslog                  yes
SyslogSuccess           yes
LogWhy                  Yes

Canonicalization        relaxed/simple

ExternalIgnoreList      dsn:pgsql://POSTGRES_USER:POSTGRES_PASSWORD@POSTGRES_HOST/POSTGRES_DB/table=dkim_external_ignore_list?keycol=host?datacol=host
InternalHosts           dsn:pgsql://POSTGRES_USER:POSTGRES_PASSWORD@POSTGRES_HOST/POSTGRES_DB/table=dkim_internal_hosts?keycol=host?datacol=host
KeyTable                dsn:pgsql://POSTGRES_USER:POSTGRES_PASSWORD@POSTGRES_HOST/POSTGRES_DB/table=dkim_key_table?keycol=name?datacol=key_path
SigningTable            dsn:pgsql://POSTGRES_USER:POSTGRES_PASSWORD@POSTGRES_HOST/POSTGRES_DB/table=dkim_signing_table?keycol=email?datacol=name

Mode                    sv
PidFile                 /var/run/opendkim/opendkim.pid
SignatureAlgorithm      rsa-sha256

UserID                  opendkim:opendkim

Socket                  inet:OPENDKIM_PORT@0.0.0.0