->>> ok.ok in "domain2"? no (end of list)
->>> ok.ok in "ok.ok"? yes (matched "ok.ok")
->>> ok@ok.ok in "ok@ok.ok"? yes (matched "ok@ok.ok")
->>> ok@ok.ok in "user1@domain1 : domain2 : +ok_senders"? yes (matched "+ok_senders")
+>>> ok@ok.ok in "user1@domain1 : domain2 : +ok_senders"?
+>>> list element: user1@domain1
+>>> list element: domain2
+>>> ok.ok in "domain2"?
+>>> list element: domain2
+>>> ok.ok in "domain2"? no (end of list)
+>>> list element: +ok_senders
+>>> ok@ok.ok in "ok@ok.ok"?
+>>> list element: ok@ok.ok
+>>> ok.ok in "ok.ok"?
+>>> list element: ok.ok
+>>> ok.ok in "ok.ok"? yes (matched "ok.ok")
+>>> ok@ok.ok in "ok@ok.ok"? yes (matched "ok@ok.ok")
+>>> ok@ok.ok in "user1@domain1 : domain2 : +ok_senders"? yes (matched "+ok_senders")