diff --git a/files/usr/local/sbin/update_postgrey_whitelist.sh b/files/usr/local/sbin/update_postgrey_whitelist.sh
index 739500c..f2ad2d5 100755
--- a/files/usr/local/sbin/update_postgrey_whitelist.sh
+++ b/files/usr/local/sbin/update_postgrey_whitelist.sh
@@ -1,7 +1,8 @@
 #!/bin/bash
 
-wget https://github.com/schweikert/postgrey/raw/master/postgrey_whitelist_clients
+curl -L https://github.com/schweikert/postgrey/raw/master/postgrey_whitelist_clients -o /dev/shm/postgrey_whitelist_clients
 #wget https://github.com/schweikert/postgrey/raw/master/postgrey_whitelist_recipients
-sed -e 's|##DATE##|'"$(date +%d/%m/%Y)"'|' -e 's|##VERSION##|master|' -i postgrey_whitelist_clients
-cat postgrey_whitelist_clients > /etc/postfix/postgrey_whitelist_clients
+sed -e 's|##DATE##|'"$(date +%d/%m/%Y)"'|' -e 's|##VERSION##|master|' -i /dev/shm/postgrey_whitelist_clients
+cat /dev/shm/postgrey_whitelist_clients > /etc/postfix/postgrey_whitelist_clients
+rm -f /dev/shm/postgrey_whitelist_clients
 systemctl restart postgrey
diff --git a/tasks/postgrey.yml b/tasks/postgrey.yml
index 7f40060..7dd7fd8 100644
--- a/tasks/postgrey.yml
+++ b/tasks/postgrey.yml
@@ -6,8 +6,17 @@
     group: root
     mode: 0755
 
+- name: Mise à jour des whitelist de postgrey via crontab
+  cron:
+    name: update_postgrey_whitelist
+    minute: "1"
+    hour: "0"
+    user: root
+    job: "/usr/local/sbin/update_postgrey_whitelist.sh"
+    cron_file: update_postgrey_whitelist
+
 - name: Enable postgrey at boot time
   service:
     name: postgrey
-    enabled: yes
+    enabled: true
     state: started