The major benefit to using CDO_OnArrival is that the CDO message object interface has many useful methods, such as the parsing of MIME and Request for Comments (RFC) 822 headers.

• 使用CDO_OnArrival的主要好处是CD0邮件对象接口具有许多有用的方法,例如,能够分析MIME头和Request for Comments(RFC)822头。