Searching for "patched" emails and keys on forums often leads to dead ends. Most of these keys have been blacklisted over the years. Furthermore, Euro Truck Simulator 2 (the sequel) is frequently on sale for a few dollars, offering a vastly superior experience with much easier activation.
The Best Way to Get a Working Activation (The Modern Solution) euro truck simulator 1 activation code and email patched
Original keys were usually formatted as a series of alphanumeric blocks. Searching for "patched" emails and keys on forums