You are the messaging engineer for your company. The company has a Microsoft Exchange Server 2003 messaging system.

The company is transitioning from the current messaging system to Exchange Server 2007. You deploy an Edge Transport server named Server1. Server1 receives all e-mail messages from the Internet.

Server1 is located in the perimeter network and can communicate to servers on the internal network over TCP Port 25 only. Multiple anti-spam agents are enabled on Server1. No other Exchange Server 2007 servers are deployed on the network.

You need to recommend a high-availability solution that meets the following requirements:

The company must continue to receive e-mail messages from the Internet if Server1 becomes unavailable.

The company must continue to filter e-mail messages with anti-spam agents if Server1 becomes unavailable.

Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)