一种: one kind; one type; one spec ...邮件: mail; post; postal matter协议: agree on一种邮件协议是: wimap电子邮件协议: electronic mail protocol互联网电子邮件协议标准: pop(post office protocol)多用途因特网扩展邮件协议: mime,multipurpose internet mail extensions互联网电子邮件协议标准是: pop软件协议: software suite文件协议: appletalk filing protocol; document protocol有条件协议: conditional agreement一种电子邮件的传输协议: fidonet protocol交易条件协议: agreement on conditions of business应用软件协议: internet applications protocol代收贷价邮件协定: cash on delivery agreement; cash-on-delivery agreement代收货价邮件协定: cash-on-delivery agreement反垃圾邮件协定: seoul-melbourne anti-spam agreement无线应用软件协议: wap: wireless application protocol邮件处理协议: po post office protocol邮件传递协议: mtmail transfer protocol邮件传输协议: mail transfer protocol邮件访问协议: internet mail access protocol interent邮件扩充协议: internet简单邮件传输协议: smtp:simple mail transfer protocol; smt,simple message transfer protocol简单邮件传送协议: simple mail transfer protocol smtp; simple mail transport protocol; simple message transfer protocol; smtp:simple mail transfer protocol