Issue #4239: adjust email examples not to use connect() and terminate with
quit() and not close().
diff --git a/Doc/includes/email-simple.py b/Doc/includes/email-simple.py
index 44152a4..689511e 100644
--- a/Doc/includes/email-simple.py
+++ b/Doc/includes/email-simple.py
@@ -20,6 +20,5 @@
 # Send the message via our own SMTP server, but don't include the
 # envelope header.
 s = smtplib.SMTP()
-s.connect()
 s.sendmail(me, [you], msg.as_string())
-s.close()
+s.quit()