Communications between email system Communications between email systems which support Chinese email From English email address to Chinese email address From Chinese email address to English email address From Chinese email address to Chinese email address From English email address to English email address Communications between Chinese enable system and ASCII email system Can automatically know whether other email system can support Chinese email or not, if do not support, sending ASCII email address which is transferred from Chinese email address, if support, then send Chinese email address5 Communications between email system  Communications between email systems which support Chinese email – From English email address to Chinese email address – From Chinese email address to English email address – From Chinese email address to Chinese email address – From English email address to English email address  Communications between Chinese enable system and ASCII email system – Can automatically know whether other email system can support Chinese email or not, if do not support, sending ASCII email address which is transferred from Chinese email address, if support, then send Chinese email address