Cron job to make sure our server isn't on any RBLs

roles/mailserver/tasks/checkrbl.yml

@@ -0,0 +1,9 @@
+- name: What is our IP address?
+  command: dig ${mail_server_hostname} +short
+  register: dig_command
+
+- name: Download check-rbl
+  get_url: url=https://raw.github.com/lukecyca/check-rbl/f6b222b0ca/check-rbl.pl dest=/opt/check-rbl.pl
+
+- name: Install nightly check-rbl cronjob
+  cron: name="check-rbl" hour="2" minute="0" job="perl /opt/check-rbl.pl -i ${dig_command.stdout}"

roles/mailserver/tasks/main.yml

@@ -3,3 +3,4 @@
 - include: opendkim.yml tags=opendkim
 - include: dspam.yml tags=dspam
 - include: solr.yml tags=solr
+- include: checkrbl.yml tags=checkrbl