Here's the situation, and it's driving me up the wall....
I have a Windows SBS2003 server running Exchange 2003 that sits internally behind a firewall handling email. The firewall is a Symantec 301 running a Symantec client (on the Windows clients). On the several new MacBooks we're using IPSecuritas to successfully connect to the VPN. How successful? Well, file sharing is working out fine.
However, once connected to the VPN Entourage refuses to send or receive email. There are no errors (that i can find) during receive attempts, but if I try to send email I am greeted by "Error -18597". I've recently installed SAV11 which I understood to ocassionally have problems with OWA and consequently, Entourage, but OWA is working now so I'm stumped.