The below URL will explain you "how to embed google maps as still images dynamically?"
you can see the requirement of longitude and latitude values to locate the google map and marker, If you see the url of the example mapped image.
So just you want to get the Lat and Lon, then change the values dynamically on the above url. Then just add this image into you htmlized mail by standard tag as SRC attribute. Thats it. It works cool one of my app.