1. Log in as a user with your full user name and password to your SmarterMail web mail via the following link
http://mail.domain.com (Domain.com represents your domain name)
2. Then click the Settings tab and then click Account Settings on the left panel.
3. Then look at the right side view and click on the Forwarding tab and enter the email account to receive Forwarded emails. Check the box "Enable deletion of messages on forward" if you have emails that you want to delete from your mailbox after forwarding.
Notes: Make sure your forwarding email address does not account for emails from free email services such as Gmail, Hotmail, Yahoo and others.