Email forwarding

I'm looking at setting up email forwarding so that I can pick up emails from two computers in different locations.

Does email forwarding just direct mail or duplicate the email so that it goes to both accounts?

ie. does email A sent to [email protected] go to [email protected] INSTEAD of email1 or does it go to BOTH emails addresses?

Or does it just go to the email address which is checked first?

Found the answer by setting up Entourage with one account and Mail with the other.

Turns out that it bypasses email 1 and sends straight to email 2.

Is there no way of making an email duplicate itself and send to both accounts?

It is possible if you have an IMAP account. When you setup a new account there is an option to leave original mail on the server or something along this line.