I've just adopted a vpn 3000 concentrator, and am totally learing this, so my apologies.
What could be reasons within a VPN enviroment that people are having slow response to email. (excluding issues with servers)
From a network perspective I can trouble shoot slow response, but how would a vpn enviroment be any more different to troubleshoot.
Naturally VPN is going to be much much slower, but taking 10 minutes for multiple users to get their email seems odd. LAN users get there email within seconds