Encrypting email traffic with VPN tunnel using Netgear FVS..

Archived from groups: comp.dcom.vpn (More info?)

Assume that you have a two simple office networks. Call them NETWORK1
and NETWORK2. In each network, a Netgear FVS318 dolls out the IP
addresses via DHCP. Assume also that a VPN tunnel has been set up
between the two FVS318 VPN routers of the two different networks.

In both networks, only the FVS318 routers manage the networks. There
are not any domain controllers or win servers on either network.

On NETWORK1, there is the mail server "mail.company.com".

Is it possible to set up the VPN tunnel so that all email sent from
NETWORK2 uses the VPN tunnel to reach members of NETWORK1 and vice
versa?