You have an Exchange Server 2016 organization.
All users work from a main office and use Microsoft Outlook 2016.
You recently ran the Microsoft Office 365 Hybrid Configuration Wizard and moved most of the user mailboxes
to Exchange Online. A network administrator reports an increase in the amount of outbound SMTP traffic from
the network.
You need to reduce the amount of bandwidth utilization for the outbound SMTP traffic.
What should you do?
A.
From the Exchange Server organization, create a Receive connector that uses the IP address of Exchange
Online as a remote range.
B.
From the public DNS zone, modify the MX record to point to Exchange Online.
C.
From the public DNS zone, modify the SRV record to point to Exchange Online.
D.
From the Exchange Server organization, create a Send connector that uses Exchange Online as an SMTP
smart host.
Explanation:
The path messages sent to recipients in your on-premises and Exchange Online organizations take depends
on how you decide to configure your MX record in your hybrid deployment. The Hybrid Configuration wizard
doesn’t configure the routing for inbound Internet messages for either the on-premises or Exchange Online
organizations. You must manually configure your MX record if you want to change how your inbound Internet
mail is delivered.
https://technet.microsoft.com/en-us/library/jj659050(v=exchg.150).aspx
B
https://practical365.com/exchange-server/changing-mx-records/
As per the discussion below, answer is D.
The question is — How to reduce the bandwidth utilization for the “OUTBOUND” SMTP traffic. How does a creation of MX record will help, as it only reduces the inbound traffic.
From the options, the relevant could be D–
From the Exchange Server organization, create a Send connector that uses Exchange Online as an SMTP smart host.
We need to enable centralized transport from Exchange online, so that most of the mailboxes on Exchange online will route directly from Office to Internet reducing the traffic to route from Onpremise servers.
Your argument is backwards as per the link below. You do NOT want to enable centralized transport. It also off by default and not recommended by MS.
If Centralized Transport is off: messages go directly to the Internet.
If it’s on, they will be redirected through your on-premises servers.
https://technet.microsoft.com/en-us/library/jj659050(v=exchg.150).aspx#Outbound messages to the Internet
I do understand that you do not need an MX record to send any email, they are for inbound only, but you’ll need to do more to convince me. 🙂 I like this dialogue though!
Then I find this, which helps further your point…:
https://technet.microsoft.com/en-us/library/dn751020(v=exchg.150).aspx#Part 2: Configure mail to flow from your email server to Office 365
To me, it looks like the MX record has to be changed BEFORE doing the Smart Host connector.
Let me know what you think?
I believe you are correct with the Send Connector.
Agree with Reddy. Answer is D.
I think the answer is B.
Not changing the MX records will create all the incoming mail to go to the local Exchange server then forwarded to the Online Exchange server creating a lot of SMTP traffic. Most all the email boxes were moved to the hosted exchange server the MX records need to be changed.
I seem to agree with D
That would “move” the outbound traffic to going out from Exch Online.
Break it down to what the question is asking
“You need to reduce the amount of bandwidth utilization for the outbound SMTP traffic.”
D is the only option that makes sense to me.
https://technet.microsoft.com/en-us/library/jj673059(v=exchg.160)
“Routing outbound mail through smarthost”
Hope this helps all
D will change how SMTP traffic of users with mailboxes on premises will leave, which is a small number as most users already moved to cloud. Which means if cloud users are sending emails, that should not generate any SMTP traffic on corporate link. So this is not gonna make any difference.
NoBox rightly pointed above that not changing the MX records will create all the incoming mail to go to the local Exchange server then forwarded to the Online Exchange server creating a lot of SMTP traffic. As MX record is not changed automatically, we have to do it manually.
I will opt for Option B.
Thank you for explanation. Makes sense now!
I got this question.
I chose B