A system, method and computer program product for identifying spam in an image using grey scale representation of an image, including identifying a plurality of contours in the image, the contours corresponding to probable symbols (letters, numbers, punctuation signs, etc.); ignoring contours that are too small or too large given the specified limits; identifying text lines in the image, based on the remaining contours; parsing the text lines into words; ignoring words that are too short or too long, from the identified text lines; ignoring text lines that are too short; verifying that the image contains text by comparing a number of pixels of a symbol color within remaining contours to a total number of pixels of the symbol color in the image; and if the image contains a text, rendering a spam/no spam verdict based on comparing a signature of the remaining text against a SPAM template.