diff --git a/linux/base-config-debian/roles/base-config-debian-os/tasks/main.yaml b/linux/base-config-debian/roles/base-config-debian-os/tasks/main.yaml
index 27f7b3b..1149ac1 100644
--- a/linux/base-config-debian/roles/base-config-debian-os/tasks/main.yaml
+++ b/linux/base-config-debian/roles/base-config-debian-os/tasks/main.yaml
@@ -92,6 +92,7 @@
     - regexp: '^dc_localdelivery'
       line: "dc_localdelivery='{{ dc_localdelivery }}'"
   notify: restart exim4
+  register: exim4_config
 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
@@ -154,6 +155,7 @@
 # Send mail with module shell (shell module accepts pipes "|" , command module dont accept pipes)
 - name: sending mail to verify exim4 config works
   shell: echo "Verify send email from host {{ ansible_nodename }}.verdnatura.es with mailx , bye." | mailx -s "test mail verify exim4 for the host {{ ansible_nodename }}.verdnatura.es" -c rubenb@verdnatura.es,nada@verdnatura.es,juan@verdnatura.es,davidl@verdnatura.es informatica@verdnatura.es
+  when: exim4_config.changed
 # Delete tmp file /tmp/messagefileverify
 #- name: delete tmp file /tmp/messagefileverify
 #  file: