Use new email module names (#1637162, #1637159, #1637157).
diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py
index ed0b1e8..f877c15 100644
--- a/Lib/logging/handlers.py
+++ b/Lib/logging/handlers.py
@@ -778,7 +778,7 @@
         try:
             import smtplib
             try:
-                from email.Utils import formatdate
+                from email.utils import formatdate
             except ImportError:
                 formatdate = self.date_time
             port = self.mailport