Update variables.tf

variables.tf

@@ -216,4 +216,9 @@ variable "cf_linux_posture_id" {
 variable "cf_device_os" {
   description = "This is the OS you are running on your own client machine"
   type        = string
+}
+
+variable "cf_email_domain" {
+  description = "Email Domain used for email authentication in App policies"
+  type        = string
 }