if (fallBack != null) {
policies.add(new SPFPolicyPostFilterChecker(fallBack));
}
policies.add(new SPFPolicyPostFilterChecker(new NoSPFRecordFoundPolicy()));
// trustedForwarder support is enabled
if (useTrustedForwarder) {
policies.add(new SPFPolicyPostFilterChecker(new TrustedForwarderPolicy(log)));
}