standard mta on arch is not ssmtp

so use variable for distro specific mtas

roles/server/tasks/utilities/mta.yml

@@ -0,0 +1,16 @@
+- name: server | utilities | install ssmtp
+  package:
+    name: "{{ mta_package }}"
+    state: present
+  when: postfix is not defined or postfix == false
+
+- name: server | utitilies | configure ssmtp
+  lineinfile:
+    path: "/etc/ssmtp/ssmtp.conf" # required. The file to modify. Before Ansible 2.3 this option was only usable as I(dest), I(destfile) and I(name).
+    regexp: "{{ item.regex }}"
+    state: present
+    line: "{{ item.line }}"
+  loop:
+    - { regex: "^root=.*$", line: "root=rene@tantooine.myfirewall.org"}
+    - { regex: "^mailhub=.*", line: "mailhub=coruscant.universe.local"}
+    - { regex: "^hostname=.*", line: "hostname={{ ansible_fqdn }}"}