What actually counts as junk mail legally?

Not all unwanted mail is treated the same legally.

Some of it is:

• Prescreened credit offers
• Political mail
• Local advertising
• Addressed marketing
• Unaddressed saturation mail

Different rules apply to different types.

We’re researching and documenting this space and would love input:

Which type of junk mail do you find hardest to stop?
Has any opt out method worked reliably for you?

Let’s break this down properly.