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