Spiros,
As I told you, you must also change the entry in the UGA list to read
@PSUVM.PSU.EDU. You have eliminated the problem between AU and PSU, but
not between PSU and UGA. You don't have the problem when you send to UGA
because PSU knows not to send back to UGA. It is UGA that cannot handle
the PSUVM.PSU.EDU origin.
Eric