+# for comparison, mails that should get identical sigs, though not using a transport_filter
+exim -DOPT=From -odf b@test.ex
+From: nobody@example.com
+
+content
+
+--
+This is a generic mailinglist footer, using a traditional .sig-separator line
+----
+****
+millisleep 500
+exim -DOPT=From -DALLOW=y -odf c@test.ex
+From: nobody@example.com
+
+content
+
+--
+This is a generic mailinglist footer, using a traditional .sig-separator line
+----
+****