Your company has a legacy email system that contains 2,000 mailboxes and uses an SMTP domain of @contoso.com.
You deploy a new Microsoft Exchange Server 2019 organization.
You configure your network to deliver all the email messages for contoso.com to the Exchange organization.
You need to configure the Exchange organization to forward all the email messages destined for the legacy mailboxes to the legacy email system.
What should you create?
A. a Send connector and an internal relay accepted domain
B. a Send connector and an authoritative accepted domain
C. a Receive connector and an internal relay accepted domain
D. a Receive connector and a remote domain
