jessepearson · October 31, 2016 17:19 · Oct 31, 2016
diff --git a/add_bcc_to_certain_emails.php b/add_bcc_to_certain_emails.php
@@ -0,0 +1,29 @@
+<?php // only copy this line if needed
+
+/**
+ * Function adds a BCC header to emails that match our array
+ * 
+ * @param string $headers The default headers being used
+ * @param string $object  The email type/object that is being processed
+ */
+function add_bcc_to_certain_emails( $headers, $object ) {
+
+	// email types/objects to add bcc to
+	$add_bcc_to = array(
+		'customer_renewal_invoice',		// Renewal invoice from WooCommerce Subscriptions
+		'customer_processing_order',	// Customer Processing order from WooCommerce
+		);
+
+	// if our email object is in our array
+	if ( in_array( $object, $add_bcc_to ) ) {
+
+		// change our headers
+		$headers = array( 
+			$headers,
+			'Bcc: Me <[email protected]>' ."\r\n",
+			);
+	}
+
+	return $headers;
+}
+add_filter( 'woocommerce_email_headers', 'add_bcc_to_certain_emails', 10, 2 );