Your network contains 20 offices. Each office contains 1,000 users.
The users access their e-mail messages by using Microsoft Office Outlook. You have an Exchange Server 2010 organization.
You need to recommend an Exchange Server solution that meets the following requirements:
.Ensures that users in each office download the list of recipients for their office only
.Ensures that users in each office can send e-mail messages to any user in the organization
What should you recommend?()