troubleshooting Question

GW6.5 message delivery slow across GWIA.

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chris_certified-nets asked on
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Two Netware 6 servers running Gw6.5.  PO/POA on server1, MTA and GWIA on server2.  Server2 was also runing Bordermanager, now it is not (Installed a hardware firewall), but server2 is still multihomed, one NIC on lan, one on Internet with the domain's MX record IP, internet router only permitting port 25 to that IP.  Bordermanager has been gone for a year, this problem appeared about two weeks ago.
Messages come in from the Internet to the GWIA but are not delivered to the PO for hours, likewise outgoing messages from the PO are hanging somewhere (I don't know how to figure out where) for several hours before remote delivery.
What I think is either the problem or the telling symptom is this.  The MTA on server2 loads and connects to the GWIA, but when it connects to server1 it opens and closes the domain in under a second, and it stays closed.  I have changed the connection method from TCP/IP to UNC to Mapped and back again, all do the same thing.
Any good ideas?
Thank You.
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