When my PC is turned on I receive e-mails fine, however the moment I turn it off any e-mails that are sent whilst it's powered off never make it through. I have sent some test e-mails through via another PC just to check this out and they definitely never make it through.
Have you got any ideas why this happens?
There are 5 PC's on a small LAN (mixed Vista and XP environment) running through a server with SBS2003. Norton Internet security installed onto each PC locally.
Any suggestions would be gratefully received.