Cronmails: Fix rejected mails b/c of non FQDNs in sender

README.md

@@ -36,6 +36,7 @@ Mandatory variable:
 ### Cronmails
 Mandatory variable:
 - `cron_email`: Sender email address used by cron
+- `exim_etc_mailname`: Exim4 /etc/mailname (default: inventory_hostname)
 
 ### Docker
 Optional variable:

defaults/main.yml

@@ -11,3 +11,5 @@ telegraf_unifi_file: "telegraf-UniFi.conf.j2"
 telegraf_airmax_file: "telegraf-AirMAX.conf.j2"
 
 dockercompose_use_pip: false
+
+exim_etc_mailname: "{{ inventory_hostname }}"

tasks/cronmails-Debian.yml

@@ -30,13 +30,19 @@
     src: "{{ role_path }}/templates/update-exim4.conf.conf"
     dest: /etc/exim4/update-exim4.conf.conf
   register: cronmails_conffile_update
+- name: cronmails - Set /etc/mailname
+  become: yes
+  ansible.builtin.copy:
+    dest: /etc/mailname
+    content: "{{ exim_etc_mailname }}"
+  register: cronmails_mailname_update
 - name: cronmails - Run update-exim4.conf
   become: yes
   ansible.builtin.shell: "update-exim4.conf"
-  when: cronmails_conftmp_update.changed or cronmails_conffile_update.changed
+  when: cronmails_conftmp_update.changed or cronmails_conffile_update.changed or cronmails_mailname_update.changed
 - name: cronmails - Enable and start exim4
   become: yes
   ansible.builtin.service:
     name: exim4
-    state: started
+    state: restarted
     enabled: yes

tasks/cronmails.yml

@@ -23,3 +23,10 @@
     name: MAILTO
     env: yes
     value: "{{ cron_email }}"
+- name: cronmails - Add monthly test mail
+  become: yes
+  ansible.builtin.cron:
+    name: "Monthly Test Mail"
+    minute: "0"
+    day: "1"
+    job: echo "Monthly cron test mail"

templates/update-exim4.conf.conf

@@ -17,7 +17,7 @@
 # This is a Debian specific file
 
 dc_eximconfig_configtype='internet'
-dc_other_hostnames='{{ ansible_hostname }}, localhost.localdomain, localhost'
+dc_other_hostnames='{{ inventory_hostname }}, localhost.localdomain, localhost'
 dc_local_interfaces='127.0.0.1 ; ::1'
 dc_readhost=''
 dc_relay_domains=''