24.Section 7 sets out exceptions from the general prohibition in section 6(1).
25.Subsection (1) exempts letters conveyed for a payment of not less than £1 or weighing not less than 350 grams.
26.Subsection (2) sets out further detailed exceptions. They include activities currently exempted as “class licences”, such as the document exchange system used by lawyers and other professionals. The section then defines exactly what is meant by these exceptions.