Don not allow duplicate aliases, lowercase some fields

README.md

@@ -18,14 +18,6 @@ Then you can do
 
     fab deploy
 
-
-# TODO
-- Alias should only allow unique (source,destination) tuples
-- lowercase domain, alias and user on save
-
-# TODO later
-- Create domain dir for dovecot?
-
 # Inspiration:
 - http://modoboa.readthedocs.org/
 - https://github.com/lgunsch/django-vmail