sudo postmap hash:/etc/postfix/$local_domainname/transport
sudo postmap hash:/etc/postfix/$local_domainname/virtual_alias
sudo postmap hash:/etc/postfix/cyclocoop.org/virtual_alias
+sudo postmap hash:/etc/postfix/lesjantesdunord.org/virtual_alias
sudo postmap hash:/etc/postfix/ptitvelo.net/virtual_alias
sudo postmap hash:/etc/postfix/veli-velo.org/virtual_alias
sudo install -d -m 770 -o root -g root \