The Email is interesting 
Thanks for the hint! Should have thought of this before... On to solve the next step
TS, thanks for the cool puzzle
Hint? What's the hint? YOu mean its related with cipher1337?
The auto reply you got when sending an email to cipher1337 contains some new files. I think they need to be converted to jpg, but I don't know how to make jpgs from HEX code..
Just merge the 3 hex sources, paste into a hex editor and save as JPG.
You will get an image of the last supper.