abhishek singh wrote:
i have never opened telnet ok , my xinetd service is off so there is no telnet service , i m doing telnet to outside to 25 port on my mail server and there is proper smtp authentication enabled on server , the problem is anyuser (non-existing) with my domain can send mail to my real domain users. below is example........
Check this and do accordingly ...
http://www.sendmail.org/faq/section3.html#3.27 http://www.sendmail.org/tips/relaying.html
hope this help!