clean up nullmailer

hosts

@@ -51,6 +51,15 @@ jack.adm.crans.org
 [nginx_rtmp]
 fluxx.adm.crans.org
 
+[postfix]
+boeing.adm.crans.org
+mailman.adm.crans.org
+redisdead.adm.crans.org
+soyouz.adm.crans.org
+sputnik.adm.crans.org
+titanic.adm.crans.org
+zamok.adm.crans.org
+
 [radius]
 routeur-sam.adm.crans.org
 

plays/mail.yml

@@ -6,7 +6,7 @@
 # All other servers uses nullmailer to send local mail to Crans SMTP.
 
 # Redirect local mail to mailserver
-- hosts: crans_server,!redisdead.adm.crans.org,!soyouz.adm.crans.org,!titanic.adm.crans.org,!boeing.adm.crans.org,!sputnik.adm.crans.org,!zamok.adm.crans.org,!mailman.adm.crans.org
+- hosts: crans_server,!postfix
   vars:
     mail_root: root@crans.org
     mail_smtp_server: smtp.adm.crans.org