newsupernova/vendor/dotmailer/dotmailer-magento2-extension/etc/frontend/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Framework\View\Asset\Minification">
        <plugin name="ddg_minificationPlugin" type="Dotdigitalgroup\Email\Plugin\MinificationPlugin" />
    </type>
</config>