You have two servers that run Windows Server 2008 named Server1 and Server2. You install Windows SharePoint Services （WSS） 3.0 on Server1. You install the SMTP feature on Server2. You configure the outgoing e-mail settings on Server1 to use the SMTP service on Server2. You need to ensure that e-mail messages from Server1 are forwarded to users. What should you do？（）
- AOn Server2， create a new application pool， and then associate the application pool with a new Web site.
- BOn Server2， configure the SMTP service to accept anonymous connections and to relay e-mail messages.
- COn Server1， create a new application pool. On an internal DNS server， create a new MX record for Server1.
- DOn Server1， create a new application pool. On an internal DNS server， create a new MX record for Server2.