+>>> test in helo_lookup_domains?
+>>> list element: @
+>>> list element: @[]
+>>> test in helo_lookup_domains? no (end of list)
+>>> test.ex in percent_hack_domains?
+>>> list element: ! a.test.ex
+>>> list element: !b.test.ex
+>>> list element: !TESTSUITE/aux-fixed/0057.d1
+>>> list element: ! TESTSUITE/aux-fixed/0057.d2
+>>> list element: *.test.ex