social/mail_queue_send_limit/data/ir_config_parameter.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <record id="param_limit" model="ir.config_parameter">
            <field name="key">mail_queue_send_limit.limit</field>
            <field name="value">100</field>
        </record>
    </data>
</openerp>