Windows does not provide mail accounts. Contact a mail provider to
create an account, then set up your mail client to send an recieve
mail via this account.
Guest accounts can not connect to the Internet, so you have to use the
Fast user Switching to send and recieve mails from this account.
Help with the mail client OE, that comes with Windows, is available
from
news://msnews.microsoft.com/microsoft.public.windows.inetexplorer.ie6_outl
ookexpress.
"Behavior of RAS Connections With the Fast User Switching Feature"
(
http://support.microsoft.com/?kbid=289669)