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