Outlook Express (OE) allows you to set up Identities. You can set up a new Identity from the File menu. You can have as many Identities as you choose.
OE gives you two options:
-- Use an Identity to send and receive mail from more than one email account.
-- Use an Identity to send and receive mail from only one email account.
Obviously you can also use a combination of these. For example, the mail for two people is received using Outlook Express on one of our computers.
Until recently, one person owned only one email account and their Identity received mail from that account only. The other person (myself) had three different email accounts receiving mail in three separate Identities. This made a total of 4 email accounts each using a separate one of the 4 Identities.
Recently, the first person's email provider announced that they would be shutting the service down. I also have an account with that company. Both of us have made a new email account with another company.
Our Identities that were used for the company that is shutting down, are now used to send and receive mail for two email accounts each (while we undergo transferring our contacts from one account to the other). The two email accounts are the one that is shutting down and the new one. This has been done by adding a new email account to each of those Identities which does not stop the old account from being able to work. When we check emails, we get a sign in box for the old email account and then a sign in box for the new account.
After the old account ceases to exist, I will remove the old account from our Identities and we will once again only be sending and receiving from one email account per Identity.
A useful feature of OE that I have set for both of us is to have OE show us which address our contacts used when sending us mail - this helps us quickly work out which contacts have corrected their address book for us and know which ones to remind. This can be set up on the Inbox only and/or on other folders.
As you can see from what I have said, you'll be able to do exactly what you would like to do.
OLEXP: How to create and use identities in Outlook Express 5.x and 6.0
http://support.microsoft.com/kb/209169