workaround: hardcode internal ip for transparent ports

roles/monitoring-client/tasks/main.yaml

@@ -47,7 +47,8 @@
   command: dpkg -s postgresql
   register: postgresql_installed
   ignore_errors: true
-  changed_when: False
+  changed_when: false
+  failed_when: false
   check_mode: no
 
 - name: Set has_postgres variable

roles/monitoring-master/files/services_passive_mail_extern.conf

@@ -1,15 +1,15 @@
 apply Service "MAIL-postfix-tls" {
 	import "generic-service"
 	check_command = "ssl"
-	vars.ssl_address = "mail.atlantishq.de"
-	vars.ssl_port = "587"
+	vars.ssl_address = "192.168.122.101"
+	vars.ssl_port = "465"
  	assign where host.name == "mail"
 }
 
 apply Service "IMAP-dovecot-tls" {
 	import "generic-service"
 	check_command = "ssl"
-	vars.ssl_address = "mail.atlantishq.de"
+	vars.ssl_address = "192.168.122.101"
 	vars.ssl_port = "993"
  	assign where host.name == "mail"
 }