how to block open relay in sendmail 8.12.8/8.14.3 on rhel 3

[rite]

Hi All Experts

I am in very bad situation kindly help me.

I have problem of open relay in my sendmail 8.12.3 on rhel 3 platform

I did few things to stop open relay like SMTP AUTH Login Plain, I allow relaying only to my local ips in a LAN network using access file. And I have Anivirus server who take care of spams and viruses. all email will pass this test to go out side of firewall.

And finaly i upgrade my sendmail version to 8.14.3 but still i am facing same kind of problem.

I Try relay-domain file but yet facing problem.

Kidly give me any hint to stop open relay.

Please send me any solution for that.

I search a lot.. but not got any perfect solution.

Thanks...

[davidanand]

Hi,

Try this URL
Controlling SMTP Relaying - Tips - sendmail.org