Hello, You may have an open relay mail server (smtp). Port 25 is always open to receive messages to local users. If the spammer is using your SMTP as a gateway to send messages to outside domains (outside your box) then you have an open relay SMTP. You need to use pop before smtp i.e. local users must first check thier mails (authenticate) before given access to send email through SMTP.
If the spammer is sending mails to your local users within your box, then you need to apply reject rule to the spammer IP Address, Email Address, or domain name. Al-Juhani [EMAIL PROTECTED] >===== Original Message From [EMAIL PROTECTED] ===== >Help! Someone is using my postfix server to send sex SPAM! The worst part is the fact that I have ALL PORTS closed! How did they get past that? What can I do to stop it firewall wise and postfix config wise? > >Please help me stop SPAM. Thank you. > > > >nick marsh >[EMAIL PROTECTED] > -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
