Your network contains an Active Directory domain.
The domain contains a server named Server1 that has Microsoft SharePoint Foundation 2010 installed.
You install the SMTP Server feature on a server named SMTP1.
From Central Administration on Server1, you configure SMTP1 as the outbound mail server for the SharePoint farm.
You need to ensure that SMTP1 can deliver all email messages sent from Server1.
What should you do?
A. On Server1, create an inbound firewall rule.
B. On Server1, create an outbound firewall rule.
C. On SMTP1, configure the Authentication settings.
D. On SMTP1, configure the Relay Restrictions settings.
