When your virtual server is first set up, a default forwarding address is set up to forward all email sent to your domain to a single address. Normally, this will be the email address you specified when you ordered your virtual server. Without this feature, email sent to your domain before you had configured the email addresses you wanted to use would have been lost.
Setting up specific email addresses as either a email forward, pop email account or a mailing list will override the default forwarding setting.
You can change or eliminate the default forwarding setting by changing the Default Forwarding Address from the Email Manager menu in ServerTools. You can also specify more than one default forwarding address so that all email sent to your domain will be forwarded to more than one address. Use commas to seperate each address.