1.Basic requirements are you should have a key logger and a picture of .jpg format or any other format of your wish but i recommend .jpg as it is easy to download.

2.I recommend "INSIDE KEYLOGGER"

download inside keylogger

3.Install the keylogger and give your email id in the Email options, I recomend yahoo. So you are half way done.

4.Now move to the folder in which you have your keylogger and one jpg image Zip both the files and save it in .jpeg format and upload the file on to the server. As the server will not allow you to upload the .exe files

5.This is another method to hide your Keylogger
copy these files to C:\ drive and paste them into a folder and open the command prompt window

6. the most important step is type this command at command prompt.

copy /b sourceimagefile.jpg + filetobehidden.exe targetimage.jpg
Now the logger in the .jpeg format

7.Now the antivirus cant detect the file.

8.Just send the uploaded image to the victim as soon as he clicks the image file invisible keylogger will be installed.
He'll b enjoying with picture and you enjoy with his emails