创建一个新的搜索文件夹Search Folder,可以取名为Total emails per day. In the Search Folder Criteria dialog, under Messages tab, separately select received and Today from the Time drop-down list. Then click OK. In the Select Folder(s) dialog, select the folder you want to count the total emails per day, and uncheck the Search subfolders box. Then click OK button. 剩下的就容易了。每天这个文件家里的内容会自动更新为当天收到的邮件，旧的会自动擦掉。每天瞄一眼这个文件夹旁括号里的数字就知道邮件总数了。