That's impossible if you receive the email from your friend you can not edit the email that you receive from him unless he knows your email password.

Can you tell us what the latest version of the Electrum you currently using? And where did you downloaded it?

There are many fake Electrum wallets so you might be using a fake wallet.
You must verify the Electrum first before you install Electrum to your PC.

So I suggest you to verify the Electrum that you currently using follow the guides below

- How to verify Electrum (for Windows, Linux and Mac)
- How verify Electrum signature