roles/debian-base/handlers/main.yml

@@ -19,4 +19,4 @@
 - name: reconfigure tzdata
   command: dpkg-reconfigure -f noninteractive tzdata
 - name: update exim configuration
-  command: update-exim4.conf
+  command: /usr/sbin/update-exim4.conf

roles/debian-base/tasks/relayhost.yml

@@ -20,8 +20,10 @@
     mode: '0644'
   notify: update exim configuration
   register: exim_config
+- name: Force execution of handlers immediately
+  meta: flush_handlers
 - name: Sending mail to verify relay host configuration works
   shell: >
-    echo "If you see this message, relayhost on {{ ansible_fqdn }} has been configured correctly." \
+    sleep 2; echo "If you see this message, relayhost on {{ ansible_fqdn }} has been configured correctly." \
       | mailx -s "Relayhost test for {{ ansible_fqdn }}" "{{ sysadmin_mail }}"
   when: exim_config.changed