[ale] sendmail behind IP MASQ firewall

[cfowler at zfh-csg.penguinpowered.com (cfowler at zfh-csg.penguinpowered.com)]

I have a firewall with the name of zfh-csg.penguinpowered.com.

I would like to be able to send mail from the 192.168.1.X subnet
to the outside world.  the internal mail addresses
look like the following:

root at power.zfh-csg.com

I want the world to see them as

root.power at zfh-csg.penguinpowered.com

The firewall will then route the email back using entries I have
placed in /etc/aliases.

I need to edit sendmail.cf on each internal machine to
replace

root at power.zfh-csg.com 

with

root.power at zfh-csg.penguinpowered.com

Maybe this can be done on the firewall?

Thanks,
Chris Fowler

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