contract/analytic_hours_block/hours_block_data.xml

<?xml version="1.0" ?>
<openerp>
    <!-- Mail template are declared in a NOUPDATE block
         so users can freely customize/delete them -->
    <data noupdate="1">
        <record id="email_template_hours_block" model="email.template">
            <field name="name">Hours Block - Send by Email</field>
            <field name="email_from">${(object.user_id.email or object.company_id.email or 'noreply@localhost')|safe}</field>
            <field name="subject">${object.company_id.name} Hours Block (Ref ${object.number or 'n/a'})</field>
            <field name="email_recipients">${object.partner_id.id}</field>
            <field name="model_id" ref="analytic_hours_block.model_account_hours_block"/>
            <field name="auto_delete" eval="True"/>
            <field name="report_template" ref="block_hours_report"/>
            <field name="report_name">Hours_Block_${(object.number or '').replace('/','_')}_${object.state == 'draft' and 'draft' or ''}</field>
            <field name="lang">${object.partner_id.lang}</field>
            <field name="body_html"><![CDATA[
                <p>Hello ${object.partner_id.name},</p>

                <p>Please find attached your Hours Block Report.</p>
                <p>Best regards.</p>
            ]]></field>
        </record>
    </data>
</openerp>