fixed typo in "except"

TerjeBr · weaverryan · commit a4af6a0384c8 · 2015-02-23T22:36:24.000-05:00
diff --git a/cookbook/email/dev_environment.rst b/cookbook/email/dev_environment.rst
@@ -161,7 +161,7 @@ This can be done by adding the ``delivery_whitelist`` option:
             ),
         ));
 
-In the above example all mail will be redirected to ``dev@example.com``, exept that mail to the single
+In the above example all mail will be redirected to ``dev@example.com``, except that mail to the single
 address ``admin@specialdomain.com`` and all mail to the domain ``mydomain.com`` will be delivered as normal.
 
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