Contoso, Ltd., and Fabrikam, Inc., are partner companies. Each company has an Exchange Server 2013 organization in a data center that is connected to the Internet. All of the Exchange servers in both of the organizations have the Client Access server role and the Mailbox role installed. The data centers connect to each other by using a redundant high-speed WAN link. The following mail exchanger (MX) records are configured: * Contoso.com MX 10 mail.contoso.com * Fabrikam.com MX 10 mail.fabrikam.com You need to recommend a solution for inbound mail flow. The solution must meet the following requirements: * Users in both companies must receive email from the Internet if either of the Internet links fails. * Mail from the Internet to contoso.com must be received by mail.contoso.com if the Internet link at the Contoso data center is available. * Mail from the Internet to fabrikam.com must be received by mail.fabrikam.com if the Internet link at the Fabrikam data center is available. Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Create the following DNS records: * Contoso.com MX 20 mail.fabrikam.com * Fabrikam.com MX 20 mail.contoso.com
B. Create the following DNS records: * Contoso.com MX 10 mail.fabrikam.com * Fabrikam.com MX 10 mail.contoso.com
C. For each organization, configure an internal relay domain and a Send connector.
D. For each organization, configure an external relay domain and a Receive connector.
E. Create the following DNS records: * Contoso.com MX 5 mail.fabrikam.com * Fabrikam.com MX 5 mail.contoso.com
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