Your company has a main office and two branch offices.
The relevant portion of the network is configured as shown in the exhibit. (Click the Exhibit button.)
Each office is configured as a separate routing group. A single SMTP connector connects all three routing groups.
One SMTP virtual server in each office is configured as a bridgehead server for the SMTP connector.
Users report that large e-mail messages sent between the branch offices take more than 30 minutes to be delivered.
You need to ensure that large e-mail messages sent between the branch offices are delivered as quickly as possible.
What should you do?
Exhibit: