This is actually quite easy if you have a full Unix account. You just need to
create a file in your Unix home directory. The file needs to be .forward and the
contents of that file should be the address you want your email sent. Example
(bold items are the ones I typed):
>chmod 644 .forward
Above you'll see I first did a 'pwd' command. This was to make sure I was in
my home directory. Next I issue a special 'cat' command which creates the
.forward file we need. I typed the email address and pressed CTRL-D to close the
file. Finally, I just checked my work by typing out the file with a normal 'cat'
command and then gave the file the permissions which Sendmail requires.