邮件无法发送到您指定的地址中。在邮件传输过程中由于外部的无法避免的错误导致邮件无法送达。<taozhang79@ >: failed after I sent the message.远程主机回应：554 delivery error: dd This user doesn't have a account (taozhang79@ ) [-5] - --- 附件中的内容是原信件的一份拷贝
