Try the following:

• Locate $INSTALL_DIR\config\AppConfig.xml file.
• Open this file in any editor, such as Notepad
• Search for reportersEmailAddress and specify an email address you would like to use as the sender. The final line should look something like:
  
  <reportersEmailAddress>your.desired.address@yourcompany.com</reportersEmailAddress>
  
  
• Save the file
• Restart Xeams