3rd view or mulithomed or another way?

[Jim Pazarena]

I have two slaves being updated each with two views all from one
master.

I now have a 3rd subnet, which has independent connectivity to the 'net,
but I would like it to hit my mail server which is on a different subnet.

I put a second ethernet card in the mail server, gave it an appropriate
address for the 3rd subnet, and plugged it into the switch for the 3rd 
subnet.

My problem is that if I dual-home the mail server DNS, then wouldn't the
two subnet IPs be handed to everyone, and the outside world will (possibly)
hit the 3rd subnet IP? I want this 3rd subnet to be as clean from 
outside world
traffic as possible. I know that I could create a 3rd view, but it's a 
lot of work
for just one machine.

I have about 80 windows machines on this 3rd subnet, and aside from 
having them
all change their mail server IPs to match the new subnet which is far 
from ideal,
I  can't figure out the least complicated way to accomplish this.

Any suggestions would be appreciated.

Jim