Mail Client --> intermediate host --> stunnel (?) --> imaps server

[Gordon Messmer]

Sam Varshavchik wrote:
> Matt Morgan writes:
> 
> 
>> Am I right that stunnel won't work this way? If so, what do I really
>> want to be doing, in order to get this to work? Squid? Basically, we
>> just want a way to route the entire IMAPS connection through the
>> intermediary server on the DMZ.
> 
> There are a couple of ways to do that.  First of all, you should be able 
> to mess around with iptables and get connections to the imaps port on 
> your so-called “intermediary” server forwarded to your real server.

Another option, and possibly easier to manage, is to use xinetd's 
redirection.  An example from the xinetd docs:

service telnet
{
         socket_type             = stream
         wait                    = no
         user                    = root
         redirect                = 128.138.202.20 23
         log_on_failure += USERID
}