Is spoofing exempted to copyright law? why?

Answer 1

If what you mean by "spoofing" is parody, there is no exception to the copyright law in the U.S. exempting parody, however, parody has been held under some circumstances to be within the fair use exception to the law. If you're talking about spoofing in a technology sense, the answer is a flat no.

Answer 2

right. a spoof email that displays copyright or trademark logos without permission (like they could get permission) is an infringement. course if the originator of the spoof is ever found, he will be up on much more serious criminal charges.

A parody is a technique of social or political satire, and as such it is protected speech. because of this it is granted considerable latitude in use of otherwise copyrighted content. This is true unless such use has the intended purpose is to cause financial or other harm to the rights holder.