Exam 70-345 topic 1 question 88 discussion

Your company has three offices. The offices are located in New York, London and Sydney. The offices connect to each other by using a WAN link. Each office connects directly to the Internet.
The company has an Exchange Server 2016 organization. The organization contains six Mailbox servers. The servers are configured as shown in the following table.

Each office is configured to use a different Send connector to send email messages to the Internet. All connectors have a cost value of 1.
You discover that the available bandwidth of the WAN links between the offices is low.
You need to reduce the amount of traffic generated by the Mailbox servers on the WAN links.
What should you do?