评分5星，满分5星

由 davidonpda 发表于 May 9, 2012 ·

This is what you've been looking for. See where an email is coming from, where it hopped through. It shows you the user agent of the mail client of the sender. It's free, fast, and awesome.

这个评论是针对附加组件的一个早期版本的（0.6.3）。