If you wish to remove or add an alias to a POP account, you can do so at any time.
Login to http://mail.yourdomain.com
On Main Menu under Administration, click ‘Alias Administration’
In Alias Administration Menu, Click the Add Alias button.
In the Alias text box, enter a name for the alias.
Alias names are limited to 45 characters and must be created from the character set of digits and letters. The underline (_) and hyphen (-) characters are valid. The name cannot contain spaces and must be unique within the system.
In the Destination text box, enter one of the following:
A Standard Alias
A standard alias can point to a single userid on the same system, multiple
userids on the same system, a remote e-mail address, multiple e-mail addresses, another alias, or any combination of the same.
A List Alias
A list alias points to a file that contains a list of valid mail addresses, one
After entering the alias properties, click OK to add the alias. The new alias is added to the list of registered aliases.