When you have a mail forwarder set up on the server you do not need an email†account also.†
The forwarder alone is adequate. When an account exists a copy of the message will be delivered to that account as well
as forwarded along. If you do not want to store messages from that account on your server I can remove the email account for you and keep the forward. I tested the forwarder by sending a test email and the mail server logs show that the forwarder is working fine. Please let me know if you want me to remove the account.