this.send(p.getEmail(), "[GridGameOne] Game invite",
                    "Hi,\n\nyou have been invited to a game of GridGameOne.\n\n"
                            + "Click here to do your first turn:\nhttp://" + PROPERTIES.getDomain()
                            + PROPERTIES.getUrlPath() + "/Board.action?playerId=" + p.getId() + "\n\n\nRegards,\nOliZ");