HttpmailSendMessage

KnownPropertyList.HttpmailSendMessage field

指定提交外发电子邮件的电子邮件提交 URI。 区域:Common 规范名称:PidNameHttpmailSendMessage 备用名称:urn:schemas:httpmail:sendmsg

public static readonly PidNamePropertyDescriptor HttpmailSendMessage;

也可以看看