diff --git a/Lib/mimetools.py b/Lib/mimetools.py
index 8c1cc19..5dd5396 100644
--- a/Lib/mimetools.py
+++ b/Lib/mimetools.py
@@ -5,6 +5,9 @@
 import rfc822
 import tempfile
 
+from warnings import warnpy3k
+warnpy3k("in 3.x, mimetools has been removed in favor of the email package")
+
 __all__ = ["Message","choose_boundary","encode","decode","copyliteral",
            "copybinary"]