我剛剛收到一封e-mail,
寄件者是 ,
收件者是我seednet的e-mail
主旨: You have successfully updated your password
內容:
Dear user XXXXXXXXX,

You have successfully updated the password of your Seed account.

If you did not authorize this change or if you need assistance with your account, please contact Seed customer service at:

Thank you for using Seed!
The Seed Support Team






+++ Attachment: No Virus (Clean)
+++ Seed Antivirus - www.seed.net.tw

然後還附了一個password.zip的附加檔案

怎麼查出來這封信是哪裡來的?