As Alex mentioned you need to ask your host if they allow catchall accounts eg....
foo@yourdomain.com------------------>
bar@yourdomain.com------------------> catchall@yourdomain.com
test@yourdomain.com----------------->
anything@yourdomain.com ------------>
Code:
foo@yourdomain.com------------------>
bar@yourdomain.com------------------> catchall@yourdomain.com
test@yourdomain.com----------------->
anything@yourdomain.com ------------>