POSTGRES_HOST=postgresql.mx.internal.docker POSTGRES_USER=postfixadmin POSTGRES_PASSWORD=pg_password POSTGRES_DB=postfixadmin MAIL_DOMAIN=rthoni.com MAIL_HOSTNAME=vm01.rthoni.com DOVECOT_HOST=dovecot.mx.internal.docker DOVECOT_SASL_PORT=12345 DOVECOT_LMTP_PORT=24 POSTFIX_HOST=postfix.mx.internal.docker OPENDKIM_HOST=opendkim.mx.internal.docker OPENDKIM_PORT=12345 EXIM_SMARTHOST_HOST=test-mx.rthoni.com EXIM_SMARTHOST_USER=smarthost@test-mx.rthoni.com EXIM_SMARTHOST_PASSWORD=smarthost