I keep getting spam emails with different senders, different subjects, different in every way except for the same text box at the end that supposedly is a link to unsubscribe. The link goes to a page that says I am unsubscribed, and perhaps I am from a particular email, but I continue to get more with the same text box content in every one. Is there a way to write a rule based on the contents of a text box (image) at the end of the body of an email? Thanks.