Hellas has the following peer stucture:
 
           UGA <--> PSUVM <--> LISTSERV.AMERICAN.EDU
 
However, when PSUVM sends a file to UGA, UGA sends a copy back to us.
Here are what I believe are the relevant pieces of the list definitions:
 
At PSUVM:
     *  The Hellenic Discussion  List
     *  List-Address= FQDN
     *  Peers= listserv.american.edu,uga.cc.uga.edu
     ...
     [log in to unmask]             Peer Distribution
     [log in to unmask]                    Peer Distribution
     ...
At UGA
     *  The Hellenic Discussion  List
     *  List-Address= FQDN
     *  Peers= psuvm.psu.edu,listserv.american.edu
     ...
     [log in to unmask]                  Peer Distribution
     ...
At American
     * The Hellenic Discussion  List
     * List-Address=    FQDN
     * Peers=           psuvm.psu.edu,uga.cc.uga.edu
     ...
     [log in to unmask]                     Peer Distribution
     ...