In the Reporting Services books online, under "Configuring a Report Server for E-Mail Delivery", and under "RSReportServer Configuration File Settings", it states:
"The following settings are in the rsreportserver.config configuration file. "
The first setting in the table is for "SMTP server" and its description is:
"Specifies a string value indicating the address of the mail server. An alternative way to specify the SMTP server is through an IP address."
I also checked my installation of reporting Services and found my Email server listed in the rsreportserver.config file, not in the rswebapplication.config file.
The entry in rsreportserver.config looks like this:
Am I missing something here or are none of the answers correct?