@timsaid How wrong am I by thinking that you didn't really encrypt ²×+\¯*m¡ÈZW§æ éWhµÊ&, but that you rather created some sort of text file with the email address in there. Then you opened the text file in a text editor that doesn't support the file type and took the part that replaced the email address?
Because the code just really looks like the garbage you get when you open unsupported file types in notepad.
The challenge has been finished today and the winner will be announced later. And you are wrong.
It's base64