Some people forge their headers (usually just their e-mail address) to
avoid getting SPAM. If you do so, please do not use a real domain
unless it is yours to use. Using a forged address with a real domain
places an extra SPAM handling burden on that domain.
You can check .com, .net and .org domains at:
Sincerely,
Ken Fuchs <kfuchs@winternet.com>