You are the messaging engineer for your company. The company has an Exchange Server 2007 messaging system. Users use Microsoft Office Outlook 2007 to access their mailboxes. Users use the Outlook Junk E-mail filter to regularly update their Safe Senders Lists and Blocked Senders Lists. A scheduled task aggregates the Safe Senders lists. You need to recommend an anti-spam solution that allows messages sent from e-mail addresses on users Safe Senders Lists to enter the Exchange organization. Which configuration should you recommend?
A.
Configure Edge Synchronization between the Edge Transport servers and the Hub Transport servers.
B.
Enable attachment filtering on the Edge Transport servers and the Hub Transport servers.
C.
Configure the IP Block List agent on the Edge Transport server to use a real-time block list.
D.
Enable sender reputation and sender filtering on the Edge Transport servers.
Explanation:
Safelist Aggregation collects Safelist settings from configured Outlook users and makes these available to anti-spam agents operating on the Edge servers. This cuts the rate of false positives. When Safelist Aggregation is set, the Content Filter identifies email from Safelist sources as okay and delivers it to the users Inbox without further processing.http://technet.microsoft.com/en-us/library/bb125168.aspx
To configure safelist aggregation:
1. Run Update-Safelist.
2. Schedule periodic updates (Use AT command in EM Shell).
3. Verify EdgeSync is replicating safelist data to the ADAM on the Edge server.
4. Verify content filtering is enabled on servers running anti-spam agents.
http://technet.microsoft.com/en-us/library/aa998280.aspx
http://technet.microsoft.com/en-us/library/bb310755.aspx