Question : Unable to send mail through Trend Micro IMSS

Hi,
I'm installing Trend Micro IMSS on windows 2003 server. This server have the internet ip address of my domain mail address (ex. mycompany.com).
I've a netware 6.5 server also with tha Novell Groupwise GWIA that send and receive mail through IMSS server.
The w2k3 server is replacing an old w2k with IMSS 5.7 that function properly with GWIA.
Now, when I move the cable from old to new server I can receive but can't send mail.

Thanks for help
Giancarlo

Answer : Unable to send mail through Trend Micro IMSS

modifying ip addressing of all subnet....maybe a problem with some firewall rules.
sorry.please close