proclamation about the future

In the future (when I'm elected Pope, after the Revolution, etc) there will be less official-looking junk mail. Moreover, there will be less official-looking junk mail that comes from companies that you actually do business with, but does not really require your attention. [0]

RFC: What if we made postage prohibitively expensive for mass mailings?

If elected, how would you address this problem?

[0] Also, we'll radically rearrange culture so that people have more respect for attention and its scarcity.