Are you sure you've got everything right with your Linux conf, including
setting your relay-allowed IP-s etc.

Hillar



Dear friends,
I have Linux Red Hat 5.2 as mail server and having Apache proxy server.
One of the nodes is having NT 4.0 server with 2 NIC cards configured and
ip forwarding enabled with rip for ip service installed on it.
Internal ip address of Linux m/c is
192.168.21.1/255.255.255.0
ip address of one of the cards on NT m/c is
192.168.21.133/255.255.255.0
ip address of second card on NT m/c is
132.147.168.2/255.255.0.0
4 other m/c's are configured to contact NT m/c as default gateway to
access Linux mail server.They are all having ip address in
132.147........ range.

My Problem is all these 4 machines are able to contact mail server and
send and receive mails from the default domain for which Linux server is
configured but these 4 machines are not able to send mails to any other
mail address for example  [EMAIL PROTECTED]

It shows me error that It can't relay the mails check the address.
I think the problem is in NT  configuration.
On the multihomed NT machine this error is not comming.But all the 4
nodes which are configured to contact Linux server through NT 4.0 are
facing this problem.
Thanks for the pains you are taking to read.

Please guide me in this regard.
Thanking You,
Vijay.

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