Fixed initial conflict between postfix and exim

roles/sysconfig/tasks/main.yml

@@ -6,12 +6,21 @@
     force_apt_get: true
     install_recommends: false
     name: "{{ sysconfig_packages }}"
+    state: latest
+
+- name: remove conflicting packages
+  apt:
+    force_apt_get: true
+    install_recommends: false
+    name: exim4-base exim4-config exim4-daemon-light
+    state: absent
 
 - name: install ubicast-config
   apt:
     force_apt_get: true
     install_recommends: false
     name: ubicast-config
+    state: latest
 
 - name: enable unattended upgrades
   copy: