Your network contains a server named Server1 that has Microsoft SharePoint Foundation 2010 installed.
You configure Server1 to receive e-mail by using the Automatic settings mode. You discover that the e-mail-enabled libraries on Server1 receive e-mail from unauthorized SMTP servers.
You need to ensure that Server1 only accepts e-mail from authorized SMTP servers.
What should you configure?

A.
From the settings of the libraries, modify the permissions.

B.
From the settings of the libraries, modify the incoming e-mail settings.

C.
From Central Administration, modify the incoming e-mail settings.

D.
From Central Administration, modify the list of approved distribution groups.