ummmm - am I being stupid here? If I am then forgive me. WHY is everyone discussing HOW to do then it when it is not allowed. As things stand you cannot use adsense in emails. Whatever you say about the ambiguity of the TOS it is CLEAR that you cannot send adsense in ANY emails. ...... surely end of story. As to this notion that "It's widely known that Google is looking into the ability to displaying AdSense in email" - how is it widely known? Its not "widely" known or we would all know about it. I accept I could be a bit slow and maybe it HAS been bandied about that this is a possibilty but "widely known"??? At the moment it is just hearsay and I am sure when it IS allowed that google will make it possible to add it.