1. A method for filtering an image based message, comprising: receiving an image based message from a sender, executing instructions stored in memory, wherein execution of the instructions by a processor: converts an image located within the received image based message into a grey scale image, analyzes the grey scale image to identify one or more text lines associated with the grey scale image, assigns a score to the grey scale image based on the presence or absence of a text line within the grey scale image; and filtering the received image based message based on the assigned score.