Locate the file
C:\jboss-as-7.1.1.Final\standalone\deployments\RequestCenter.war\WEB-INF\classes\config\newscale.properties
Change the value for
ObjectCache.email.host
From M. Dupont:
It is also critical to set the actual return email address. In 3.1 this is done in the System Setup portal page in the System Settings tab. There is a task named Set System Email Account.