check verify = sender
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Verifying U@W.x.y
-address match: subject=U@w.x.y pattern=*@*.x.y
+address match test: subject=U@w.x.y pattern=*@*.x.y
w.x.y in "*.x.y"? yes (matched "*.x.y")
U@W.x.y in "*@*.x.y"? yes (matched "*@*.x.y")
LOG: address_rewrite MAIN