exim4 define ansible node name

linux/base-config-debian/roles/base-config-debian-os/tasks/main.yaml

@@ -65,13 +65,13 @@
     - name: exim4/dc_minimaldns
       value: 'false'
     - name: exim4/dc_readhost
-      value: "{{ dc_readhost }}"  # var to define survey(encuesta)
+      value: "{{ ansible_facts['ansible_nodename'] }}"  # var to define survey(encuesta)
     - name: exim4/dc_other_hostnames
       value: ""
     - name: exim4/dc_eximconfig_configtype
       value: "mail sent by smarthost; no local mail"
     - name: exim4/mailname
-      value: "{{ mailname }}"  # var to define survey(encuesta)
+      value: "{{ ansible_facts['ansible_nodename'] }}"  # var to define survey(encuesta)
     - name: exim4/use_split_config
       value: 'false'
   notify: Restart exim4 service