{{Scenario Task
|Scenario Task Format=Solution
|Scenario Task Parent=I want to be certain of the recipient's identify identity (and vice versa)
|Scenario Task Type=Impersonation
|Scenario Task Description=The short answer is, you can't. You can only be certain of the sender's identity and for that you need to read [[I want to learn about digital signatures]]. There are however some tips to help you better understand where the email '''may''' have come from.