发信: post a letter; send transmit ...人: human being; man; person; pe ...按发信人: by sender发信人姓名: fromname退给发信人: return to sender发信人类型代码: mailer type codes发信人姓名和地址: the return name and address is发信人邮件地址: fromaddress请指定发信人名字: please specify sender name限制发信人地址: mailrelay server请指定发信人邮件地址: please specify a sender name信人: nobuto(电子邮递器给发信人的)退信通知: bounce message写明发信人姓名地址的, 自言自语的: self-addressed发信: 1.(发送信件) post a letter; send2.(发送信号) transmitting贴足邮资写明发信人姓名地址的回信信封: sase self-addressed stamped envelope传信人: the go-between带信人: bearer寄信人: sender收信人: action addressee; addressee受信人: addressee; fiduciary送信人: bearer porter; the go-between; medesi发信簿: forwarding letter book发信号: alerting; give a signal; hoist; make a signal; signaling; signalization; signalize; signalling; target; wigwag发信机: commutator; sender; tx transmitter