You are the messaging engineer for your company. Your company has a Microsoft Exchange Server 2003 messaging system. Your company has an application server named Server1. Server1 sends SMTP administrative alerts through an unauthenticated relay on an Exchange SMTP virtual server. You plan to deploy Exchange Server 2007 Hub Transport servers. You plan to remove all Exchange Server 2003 servers. You need to ensure that Server1 can send SMTP alerts by using an unauthenticated relay on an Exchange Server 2007 Hub Transport server. Which two actions should you perform on the Hub Transport servers? (Each correct answer presents part of the solution. Choose two.)
A.
Create a new Receive connector. Configure the Receive connector to use a remote IP address range that includes the IP address of Server1.
B.
Create a new Send connector. Configure an address space that includes only the local SMTP domain.
C.
Create a new Send connector. Configure an * address space.
D.
Add the Exchange Users permission group and the Exchange Server authentication mechanism.
E.
Add the Exchange Servers permission group and the Externally Secured authentication mechanism.
Explanation:
EMC > Server Configuration > Hub Transport > New Receive Connector…A permission group is a predefined set of rights granted to well-known security principals — users, computers, and security groups, identified by a SID — used to simplify security configuration of Receive connectors. Permission groups available to Exchange 2007 are predefined. You cant create new or modify the membership or associated rights of existing ones. Use the Permission Groups tab to select the groups or roles that can submit messages to the Receive Connector and the rights theyre assigned.
Use the Authentication tab to set security mechanisms on incoming SMTP connections. Check the Externally Secured box if the link to the smart host is secured by outside means; for example, over a private network or by IPsec. When you select this option, the assertion of external security cant be programmatically verified by Exchange. To pick this authentication method, you must first select Exchange servers option on the Permission Groups tab.
http://technet.microsoft.com/en-us/library/aa997170.aspx
http://technet.microsoft.com/en-us/library/aa996395.aspx