cyrus imap proxy?

[Mark Hannessen]

hi list,

In our network we are currently running two Cyrus imap servers in our local 
network.

imap.nperfection.com on 10.4.8.1
imap.khadgarsrage.com on 10.4.8.2

these two where made available to the internet using webmail.

now I would like imap itself to be available to the internet as well.
but I only have one internet ip.
for various reasons I cannot merge both servers into one server. (mainly 
because of internal policy)

now I thought perhaps it would be possible to do this through some sort of 
proxy, but I haven't found any information about this.

does anyone know if such a thing is doable?

thanks,

Mark Hannessen