On the FastFax Processor, you will need to click on the FFXRegistry icon on the Desktop (FastFax Tools with version 4.6.0 and higher). Now click on ‘Edit’. Scroll down to the OutboundEmailServerName. Double click on this key & key in the name of the new Email Server. Apply the changes. Once you exit, you will need to click on the ENDFFX icon on the desktop & then click on exit. Now click on the STRFFX icon to start up FastFax again.