23. The method of claim 21 , the message of the final format converted by removing at least one of graphics, color, non-text decoration, and spacing not rendered as ASCII-style or Unicode-style characters.
21. A method of filtering a message, comprising: pre-rendering the message into a final format, the message including one or more compressed images, for each of the one or more compressed images a first hash is generated, wherein the one or more compressed images are rendered in an uncompressed mode, for each of the one or more compressed images rendered in the uncompressed mode a second hash is generated, the first and second hashes are compared to determine if the message contains junk indicia; converting the message of the final format into a text-only message; processing the text-only message for predetermined content; and routing the message based upon the predetermined content.