n.寄件人;發(fā)報(bào)機(jī);送話(huà)器
Do not forward mails without permissinon of sender. 未經(jīng)寄件人許可,不要將郵件轉(zhuǎn)寄他人。
If a recipient is not found the mail is returned to the sender. 如果沒(méi)有找到接收者,那么郵件被返回發(fā)件人。