Aliases/Forwarders

E-mail forwarders are accounts which simply forward e-mail to a pre-designated e-mail address. E-mail sent to separate POP3 mail accounts end up in a single location; mail forwards are quite popular.
You can create e-mail forwarders on your account so anyone can have an e-mail address @yourdomain.com, which simply forwards mail to a different POP3 e-mail account.