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diff --git a/src/mailman/model/preferences.py b/src/mailman/model/preferences.py
new file mode 100644
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+++ b/src/mailman/model/preferences.py
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+# Copyright (C) 2006-2009 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Model for preferences."""
+
+from __future__ import absolute_import, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'Preferences',
+    ]
+
+
+from storm.locals import *
+from zope.interface import implements
+
+from mailman.config import config
+from mailman.database.model import Model
+from mailman.database.types import Enum
+from mailman.interfaces.preferences import IPreferences
+
+
+
+class Preferences(Model):
+    implements(IPreferences)
+
+    id = Int(primary=True)
+    acknowledge_posts = Bool()
+    hide_address = Bool()
+    _preferred_language = Unicode(name='preferred_language')
+    receive_list_copy = Bool()
+    receive_own_postings = Bool()
+    delivery_mode = Enum()
+    delivery_status = Enum()
+
+    def __repr__(self):
+        return '<Preferences object at {0:#x}>'.format(id(self))
+
+    @property
+    def preferred_language(self):
+        if self._preferred_language is None:
+            return None
+        return config.languages[self._preferred_language]
+
+    @preferred_language.setter
+    def preferred_language(self, language):
+        if language is None:
+            self._preferred_language = None
+        # Accept both a language code and a `Language` instance.
+        try:
+            self._preferred_language = language.code
+        except AttributeError:
+            self._preferred_language = language