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...