I am trying to get a trial version of GWGuardian to work with my mail
server, but inbound emails are not received. Outbound emails send fine.
To redirect SMTP traffic from GWIA on 192.168.10.4 to GWGuardian on
192.168.10.40 I simply change the Src/Dest IPs in my filters.

I am using BMgr 3.5, GW 6.5.4. I have set up two inbound and two outbound
static NAT filters, none of which are stateful. The in/out response
filters have ACK bit filtering enabled.

I can telnet locally to port 25 on the GWGuardian server and I can
connect to it locally using Outlook. Messages are received and passed to
GWIA without problem.

Any ideas?

Henry