odoo/addons/hr/mail_hr_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <record id="mail.action_mail_inbox_feeds" model="ir.actions.client">
            <field name="params" eval="&quot;{
                'domain': [
                  ('to_read', '=', True),
                  ('starred', '=', False),
                ],
                'view_mailbox': True,
                'view_inbox': True,
                'read_action': 'read',
                'show_compose_message': True
            }&quot;"/>
        </record>

    </data>
</openerp>