I have device on my home network that needs to send automated email notifications. It needs a local mail server to do so. I of course do not have a mail server on my home LAN, nor the means / desire to setup & administer one. I am wondering if perhaps my imac running os x 10.6.7 has the capability (either inherently or via some light weight app) to stand in as a mail server, serving as a proxy of some sort and relaying messages to an outside mail server.