Origin: https://lists.amavis.org/pipermail/amavis-users/2016-July/004428.html

--- a/amavisd
+++ b/amavisd
@@ -34338,6 +34338,7 @@
     $sig_ind++;
   }
   Amavis::load_policy_bank($_,$msginfo) for @bank_names;
+  $msginfo->originating(c('originating'));
   $msginfo->dkim_signatures_valid(\@signatures_valid)  if @signatures_valid;
 # if (ll(5) && $sig_ind > 0) {
 #   # show which header fields are covered by which signature