I will continue disscusion about spamimg. That is easy, sendmail listen for incoming connections on port 25. How to find out, if connection is made from other host/sendmail, or connection is made from mail client? Connections to my mail server is redirected throug firewall, and this gives one fault. Sendmail do not know real IP address, for sendmail all connections comes from 192.168.0.2. That all. So I cant recompile sendmail and add feature POP before SMTP because, this methode simply is based on IP loging. So this is completly rabish because all conneciton is from one IP. So does anyone know how to check if connections is for tranporting mail beatwen sendmail or not. And next how to block connections form mail clients, or how to authorize it? So far, i have help my self, and remove from /etc/mail/access the 192.168.0.2 RELAY record, and that help me to stop spaming and be an open relay. But this shut down ability to remote clients, who are allowed, check their mail. How do it? I have wathed long time the /var/log/maillog and there is diference, form connections. So i have prove that sendmail is able to examine from who is connection made. Thanks. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@linuxsecurity.com with "unsubscribe" in the subject of the message.
