mail_template.xml

<?xml version="1.0" encoding="utf-8" ?>
<odoo noupdate="1">
    <record id="delay_export_mail_template" model="mail.template">
        <field name="name">Delay Export</field>
        <field
            name="subject"
        >Export {{ object.model_description }} {{ datetime.date.today() }}</field>
        <field name="model_id" ref="base_export_async.model_delay_export" />
        <field name="auto_delete" eval="True" />
        <field name="body_html" type="html">
            <p>Your export is available <a
                    t-attf-href="{{ object.url }}"
                    target="_blank"
                >here</a>.</p>
            <p>It will be automatically deleted the <t
                    t-out="object.expiration_date"
                />.</p>
            <br />
            <p>
                <span
                    style="color: #808080;"
                >This is an automated message please do not reply.</span>
            </p>
        </field>
    </record>
</odoo>