Your company has four offices. Each office is configured as an Active Directory site.
You have an Exchange Server 2013 organization that contains nine servers. The servers are
configured as shown in the following table.
A user named User1 is in a distribution group named D_Sales. The mailbox of User1 is in a database
that is active on MBX4 and is configured to use MBX5 as an expansion server.
You need to ensure that email sent to D_Sales from the Internet is received by CAS1, and then
routed from MBX1 to MBX4.
What should you do?
A.
Configure Site1 as a hub site.
B.
Modify the expansion server setting of D_Sales.
C.
Modify the SubmissionServerOverrideList list on MBX1.
D.
Configure Site3 as a hub site.
Can anyone confirm this answer?
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I can come up with a reason why it might be D, but I’m not sure.
Mail arrives at site 1 and has to be transported to MBX5 in Site 4 to expand the group. If you want the message to go through MBX4 first, you have to set site 3 as a hub. After being expanded the message for User 1 will go back to MBX4.
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If you were to configure site 3 as a hub site then this would work…
Mail would come in to site 1, be transported to site 3, then to site 4 so that the DL can be expanded, then it would go back to site 3.
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Alternatively I also think that B would work, MBX1 would expand the DL and then process it straight to MBX4
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B
As the messages are routed from sender Mailbox Server Transport Service to recipient Mailbox Server Transport Service, I would say that it makes sense for the Expansion Server settings for the DL to be amended to MBX4. This action would remove MBX5 from the equation, and as the expansion server setting serves as the routing destination when specified, this would also ensure the emails are routed from MBX1 to MBX4.
Assuming that all external email is received by CAS1 in Site1, then MBX1 would be responsible for routing the email, via the transport service to the other mailbox servers at other sites. When a hub site is used, all email traffic from the sites configured to use the hub site is affected.
The question states that email sent to D_Sales needs to be rerouted, not all traffic. There is no mention of the need for hub sites, AD site costs, or other sites with internet facing CAS servers.
http://technet.microsoft.com/en-us/library/jj916681(v=exchg.150).aspx
Exchange 2013 Mail Flow
http://technet.microsoft.com/en-us/library/aa998825(v=exchg.150).aspx#RoutingDest
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Conditions are DB on MBX4, expansion on MBX5 -> ensure email goes from MBX1 to MBX4
Assuming all Internet emails are received by CAS1.
Hub site 3 will cause all emails flow thru MBX3 or MBX4 and email sent to User1 (D_Sales) will have to follow path CAS1->MBX3/4->MBX5->MBX4. Condition is MBX1 to MBX4. Doesnt match.
Modify the expansion server setting of D_Sales to MBX1 will cause only emails to D_Sales(User1) follow path CAS1->MBX1->MBX4. Sounds good.
Correct answer is B.
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