fg_entryautomation_export_email_headers.php

<?php

add_filter( 'fg_entryautomation_export_email_headers', 'add_export_bcc_address', 10, 3 );

/**
 * Add BCC header to Entry Automation export email.
 *
 * @param array  $headers   Email headers.
 * @param array  $task      Entry Automation Task meta.
 * @param string $file_path Export file path.
 *
 * @return array
 */
function add_export_bcc_address( $headers = array(), $task = array(), $file_path = '' ) {

	// If this is not the task we want to add the BCC header to, return.
	if ( 10 !== $task['task_id'] ) {
		return $headers;
	}

	// Add BCC header.
	$headers[] = 'Bcc: example@domain.com';

	return $headers;

}