An electronic mail system for efficiently transmitting mail data according to a change of the transmission condition of the wireless transmission path is disclosed. The system comprises a mail sender including a mail receiving unit, storage device, mail sending unit, command interpreting section, and...http://www.google.com/patents/US6735618?utm_source=gb-gplus-sharePatent US6735618 - Electronic mail system for rearranging stored mail data according to monitored data receiving condition
