It is resource intensive and to a large extent ineffective for ISPs to try to block UBE once it has been sent, so this BCP does not describe the limited manner in which this may be attempted. In the fight against UBE the ISP's most practical contribution is to minimise or eliminate the sending of UBE by its customers or from its systems. The purpose of this BCP is to describe the industry's current collective opinion of the Best Practice in achieving this. Such material is covered by a whole range of laws, from Protection of Children to Trademarks, and so no simple rule applies. This BCP addresses various issues on handling of such material.
People have a right to privacy when using the Internet.
Ensuring that activity on the Internet can be traced back to the person responsible emphatically does not mean that people's activity should be routinely monitored. The only purpose of traceability is to allow misuse, once detected, to be rooted out. A mailing list is a system by which a single email message can be distributed to many different people at different email addresses. For some lists only particular people may generate traffic, others are open and allow many people to contribute. Mailing lists are used to distribute information for many different purposes, ranging from the discussions that help develop the Internet, through groups of individuals discussing their special interests, to businesses advertising products and services.