"$tool"/etc/postfix/$local_domainname/transport \
/etc/postfix/$local_domainname/transport
sudo postmap hash:/etc/postfix/$local_domainname/transport
"$tool"/etc/postfix/$local_domainname/transport \
/etc/postfix/$local_domainname/transport
sudo postmap hash:/etc/postfix/$local_domainname/transport