We have a problem with our out of office assisitant.
We are running Outlook 2003/2007 clients with Exchange 2003 server which sits behind a Cisco Pix's firewall.
Basically when out of office is turn on - it works internally but does not work externally - i.e. if a client emails us from the internet they do not get a reply.
I have searched on Expert exchange and the web - the setting for this is allowed on the exchange server it wasn't at first but I enable it and restarted all the services.