Since I can't figure out how to successfully stop relaying on my server, I've been informed that using SMTP-AUTH is the way to go so only I can relay through my server. I have ISPConfig already installed and I was reading the Postfix How-To here ( http://www.howtoforge.com/howto_postfix_smtp_auth_tls_howto ) but that's when you are starting from scratch to setup SMTP-AUTH. How would i go about setting this up on a ISPConfig system?
That is not the best howto for your ISPConfig server. Please configure your server as described in the perfect setup howto for your linux distribution.
I did. I followed the Fedora Core 5 64-bit (even though I'm 32-bit) without issues. It says to see if everything is good, telnet to the SMTP server. Code: [tristan@localhost ~]$ telnet 192.168.1.130 25 Trying 192.168.1.130... Connected to 192.168.1.130 (192.168.1.130). Escape character is '^]'. 220 server.vasceria.com ESMTP Postfix ehlo testing 250-server.vasceria.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250 8BITMIME I am assuming that I should have to enter in a username/password to send mail out correct? I'm resorting to this because I can't seem to find any other way to block people from using me as a relay.
I think Falko gave me the link to that in the past and the results show that I'm good. Code: Connecting to www.plastikracing.net for anonymous test ... <<< 220 server.vasceria.com ESMTP Postfix >>> HELO www.abuse.net <<< 250 server.vasceria.com Relay test 1 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 2 >>> RSET <<< 250 Ok >>> MAIL FROM:<spamtest> <<< 250 Ok >>> RCPT TO:<[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 3 >>> RSET <<< 250 Ok >>> MAIL FROM:<> <<< 250 Ok >>> RCPT TO:<[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 4 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 5 >>> RSET <<< 250 Ok >>> MAIL FROM:<spamtest@[24.95.42.77]> <<< 250 Ok >>> RCPT TO:<[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 6 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<securitytest%[email protected]> <<< 554 <securitytest%[email protected]>: Relay access denied Relay test 7 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<securitytest%abuse.net@[24.95.42.77]> <<< 554 <securitytest%abuse.net@[24.95.42.77]>: Relay access denied Relay test 8 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<"[email protected]"> <<< 554 <[email protected]>: Relay access denied Relay test 9 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<"securitytest%abuse.net"> <<< 554 <securitytest%abuse.net>: Relay access denied Relay test 10 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<[email protected]@plastikracing.net> <<< 554 <[email protected]@plastikracing.net>: Relay access denied Relay test 11 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<"[email protected]"@plastikracing.net> <<< 554 <[email protected]@plastikracing.net>: Relay access denied Relay test 12 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<[email protected]@[24.95.42.77]> <<< 554 <[email protected]@[24.95.42.77]>: Relay access denied Relay test 13 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<@plastikracing.net:[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 14 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<@[24.95.42.77]:[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 15 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<abuse.net!securitytest> <<< 554 <abuse.net!securitytest>: Relay access denied Relay test 16 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<[email protected]> <<< 554 <[email protected]>: Relay access denied Relay test 17 >>> RSET <<< 250 Ok >>> MAIL FROM:<[email protected]> <<< 250 Ok >>> RCPT TO:<abuse.net!securitytest@[24.95.42.77]> <<< 554 <abuse.net!securitytest@[24.95.42.77]>: Relay access denied Relay test result All tests performed, no relays accepted. Yet people are still using me to spam fake eBay e-mails. Road Runner only allows sending up to 1000 e-mails a day and if I get spammed, my limit is reached instantly and I can't send mail for another 24 hours.
Well, this might mean that you have a vulnerable contact form/guestbook/whatever in one or more of your web sites that can be abused by spammers...
The only form I have is at the bottom of my forums. http://forums.plastikracing.net/index.php The mail it sent to me, and it'd be hard to spam with the image verification.
Could be, but they can't specify where to send the e-mail in that form. Anything entered in that form goes to [email protected].
There's a problem with PHP's mail() function: it doesn't check if there are linebreaks in the parameters that you pass to it. Maybe that makes you contact form vulnerable.
