If your email addresses are all "aliases" for one mailbox, you'll need to
use Message Rules to keep things straight.
Most families (an intentionally all-encompassing term) will have one Mail
Account with their one ISP subscription ($$/month for all). Most ISPs
provide you with multiple Addresses for the Mail Account (e.g., (e-mail address removed),
(e-mail address removed), etc.) but all of them "point" to the one mailbox. As such,
Windows Mail in each User Account will need to use Message Rules so that
only mail addressed to them is downloaded into their Inbox.
The following refers to two addresses, but you should be able to follow it
and amend for three or more.
(e-mail address removed) and (e-mail address removed) are aliases for one Mail Account (mailbox). In
Windows Mail running the User Account associated with (e-mail address removed), create a
Message Rule stating, "Where To or CC contains (e-mail address removed), Do not download
it from the server" and place this rule at the very top of the list.
Then create a similar rule in Windows Mail running the User Account
associated with with (e-mail address removed) directing any messages addressed to
(e-mail address removed) not to be downloaded from the server.
Also see MVP Tom Koch's fine pages on using Rules (ignore the references to
Outlook Express):
Message Rules Tips
http://www.insideoe.com/tips/rules.htm
Why doesn't my rule work?
http://www.insideoe.com/faqs/why.htm#rules