Users are responsible for configuring their own systems to provide the maximum possible accountability. CenturyLink shall not be liable for any damage caused by such system configurations regardless of whether such configurations have been authorized or requested by CenturyLink. For example, Users should ensure there are clear "path" lines in news headers so that the originator of a post may be identified. Users should also configure their Mail Transport Agents (MTA) to authenticate (by look-up on the name or similar procedures) any system that connects to perform a mail exchange, and should generally present header data as clearly possible. As another example, Users should maintain logs of dynamically assigned IP addresses. Users are responsible for educating themselves and configuring their systems with at least basic security. Should systems at a User's site be violated, the User is responsible for reporting the violation and then fixing the exploited system.