David Eddings has No Known Internet Connection
In fact, he doesn't even use a word processor (maybe he uses a typewriter)
so these addresses are somewhat spoof. Indeed, you should have been able to
spot that by thinking about what those addresses could have actually
indicated. The Internet only spans the globe - it doesn't yet reach the moon,
and alternate realities are somewhat beyond the scope of its designers...
If you want to contact DE, then write c/o his publishers. The address should
be printed inside the book somewhere (probably in that bit which you always
skip past on your way to the prologue...)
Donal K. Fellows / Department of Computer Science / University of Manchester
/ U.K.
fellowsd@cs.man.ac.uk