Index: django/db/models/fields/__init__.py
===================================================================
--- django/db/models/fields/__init__.py	(revision 11092)
+++ django/db/models/fields/__init__.py	(working copy)
@@ -638,7 +638,7 @@
 
 class EmailField(CharField):
     def __init__(self, *args, **kwargs):
-        kwargs['max_length'] = kwargs.get('max_length', 75)
+        kwargs['max_length'] = kwargs.get('max_length', 254)
         CharField.__init__(self, *args, **kwargs)
 
     def formfield(self, **kwargs):