Hey, I am going to be doing an email site, but the customer wants to give users the ability to have their own subdomains in their email addresses (ie john at somesubdomain.oursite.com) the users should be able to create their own subdomains, so what I wanted to do was just have the server accept mail sent to john at anything.oursite.com, then filter the mail after it has been recieved. Is this possible? Can I do it with the IIS SMTP server stuff? Thanks. John