The e-ticket option is available for most Greek ferry companies. Yet, the online booking system of the few remaining Greek Ferry companies doesn't support the option of e-ticket. As you understand, this is not an issue of FerriesinGreece.com but of all online travel agencies in Greece. In order to travel, you must have the printed tickets at hand. After booking your ferry online, you can get the printed tickets by choosing one of the aforementioned options.