I installed a suse 9.3 box with the exellent falko guide (the perfect setup) then i installed ISPconfig and is working without problems.... at this moment my only problem is that my mail-server POSTFIX is on openrelay (sending mail to other domains) and that is very bad. what can i do to fix this problem??? tanx
Why do you think it is an open relay? If you have followed the tutorial then it should not be an open relay.
i think an Open Relay is when th mail server (postfix) sends mail from any domain to any destination. i think it should restrict the sending of mails to: mydestination = /etc/postfix/local-host-names but is not... i have this line also on the main.cf relay_domains = $mydestination can you tell what is the appropiate way to enable on my server the sending of messagges ONLY to my local-host-names?? a lot of tanx
There are 3 cases where your server accepts emails without authentication, but is still not an open relay: 1) You're sending directly from your server, i.e. you're logged in on the server, e.g. on the shell or with a webmail interface. 2) You're sending an email to a recipient who is on the server. 3) You're sending from within a network that is specified in the mynetworks variable in /etc/postfix/main.cf. If one of these 3 points applies, and you're wondering why you don't need to authenticate: this is normal and does not mean your server is an open relay. Can you run Code: telnet localhost 25 and then issue Code: ehlo localhost and post the output here? If you see a line starting with 250-AUTH then it should be fine.
#telnet localhost 25 ehlo localhost 250-acuario.ims.com.co 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250 8BITMIME mmm i didnt see the 250-auth but when i installed (new) it was there ..... i know i didnt change anything except the changes that ISPconfig did. tanx
Then do the Postfix configuration again. It's here: http://www.howtoforge.com/perfect_setup_suse_9.3_p5
