@laurengoode I'm confused by the description of how the hack works. "The spammers are using the code that comes after the hash to run a snippet of JavaScript and program the page dynamically."
But that only happens once you click in the email and reach the destination page, right?
Are you saying the destination page is a legitimate Dick's Sportings Goods page but that page executes JavaScript in the Hash fragment of the current page's URL? So the spammer takes advantage of that to modify the current page even though it's legit hosted on the Dick's Sporting Goods site?