diff --git a/includes/compat/class-wc-stripe-email-failed-authentication.php b/includes/compat/class-wc-stripe-email-failed-authentication.php
new file mode 100644
index 0000000..01af464
--- /dev/null
+++ b/includes/compat/class-wc-stripe-email-failed-authentication.php
@@ -0,0 +1,126 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly.
+}
+
+/**
+ * Base for Failed Renewal/Pre-Order Authentication Notifications.
+ *
+ * @extends WC_Email
+ */
+abstract class WC_Stripe_Email_Failed_Authentication extends WC_Email {
+	/**
+	 * An instance of the email, which would normally be sent after a failed payment.
+	 *
+	 * @var WC_Email
+	 */
+	public $original_email;
+
+	/**
+	 * Generates the HTML for the email while keeping the `template_base` in mind.
+	 *
+	 * @return string
+	 */
+	public function get_content_html() {
+		ob_start();
+		wc_get_template(
+			$this->template_html,
+			[
+				'order'             => $this->object,
+				'email_heading'     => $this->get_heading(),
+				'sent_to_admin'     => false,
+				'plain_text'        => false,
+				'authorization_url' => $this->get_authorization_url( $this->object ),
+				'email'             => $this,
+			],
+			'',
+			$this->template_base
+		);
+		return ob_get_clean();
+	}
+
+	/**
+	 * Generates the plain text for the email while keeping the `template_base` in mind.
+	 *
+	 * @return string
+	 */
+	public function get_content_plain() {
+		ob_start();
+		wc_get_template(
+			$this->template_plain,
+			[
+				'order'             => $this->object,
+				'email_heading'     => $this->get_heading(),
+				'sent_to_admin'     => false,
+				'plain_text'        => true,
+				'authorization_url' => $this->get_authorization_url( $this->object ),
+				'email'             => $this,
+			],
+			'',
+			$this->template_base
+		);
+		return ob_get_clean();
+	}
+
+	/**
+	 * Generates the URL, which will be used to authenticate the payment.
+	 *
+	 * @param WC_Order $order The order whose payment needs authentication.
+	 * @return string
+	 */
+	public function get_authorization_url( $order ) {
+		return add_query_arg( 'wc-stripe-confirmation', 1, $order->get_checkout_payment_url( false ) );
+	}
+
+	/**
+	 * Uses specific fields from `WC_Email_Customer_Invoice` for this email.
+	 */
+	public function init_form_fields() {
+		parent::init_form_fields();
+		$base_fields = $this->form_fields;
+
+		$this->form_fields = [
+			'enabled'    => [
+				'title'   => _x( 'Enable/Disable', 'an email notification', 'woocommerce-gateway-stripe' ),
+				'type'    => 'checkbox',
+				'label'   => __( 'Enable this email notification', 'woocommerce-gateway-stripe' ),
+				'default' => 'yes',
+			],
+
+			'subject'    => $base_fields['subject'],
+			'heading'    => $base_fields['heading'],
+			'email_type' => $base_fields['email_type'],
+		];
+	}
+
+	/**
+	 * Triggers the email.
+	 *
+	 * @param WC_Order $order The renewal order whose payment failed.
+	 */
+	public function trigger( $order ) {
+		if ( ! $this->is_enabled() ) {
+			return;
+		}
+
+		$this->object = $order;
+
+		if ( method_exists( $order, 'get_billing_email' ) ) {
+			$this->recipient = $order->get_billing_email();
+		} else {
+			$this->recipient = $order->billing_email;
+		}
+
+		$this->find['order_date'] = '{order_date}';
+		if ( function_exists( 'wc_format_datetime' ) ) { // WC 3.0+
+			$this->replace['order_date'] = wc_format_datetime( $order->get_date_created() );
+		} else { // WC < 3.0
+			$this->replace['order_date'] = $order->date_created->date_i18n( wc_date_format() );
+		}
+
+		$this->find['order_number']    = '{order_number}';
+		$this->replace['order_number'] = $order->get_order_number();
+
+		$this->send( $this->get_recipient(), $this->get_subject(), $this->get_content(), $this->get_headers(), $this->get_attachments() );
+	}
+}