PostFix on RedHat 8
 

I've been struggling with PostFix for a week now and hope to get some answers from this message board.

* I have my own server w/ dedicated IP address.

* I am running RH8 w/ PostFix preinstalled

* I am using MX Pointing (my registratar www.123cheapdomains.com is actually doing the MX Pointing and also IP Pointing) ps. My web server works fine, but the mail server is having problems.

* I am also using Richard Blum's Postfix book for reference


Questions.
1. Do I need to run DNS BIND on my server? I am trying to avoid this.

2. When I send email (from another server) to my domain, the mail is never recieved. What kind of troubleshooting can I do?

3. Is there a concise tutorial on configuring a mail server w/ PostFix.

4. In the main.cf, there is domainname parameter. If I have multiple
domains how should I set this up?

1) No, if you've got another DNS the mailserver can ask.
2) Look into the logs. See if it comes. OR: try to send it manually (telnet yourdomain smtp).

Thanks for the reply,

I looked at the log "/var/log/maillog" and noticed
I am getting a "connection refused"

I tried using "telnet <mydomain> smtp"
and got a connection refused.


Actually, I am behind a router.

I went to the NetGear admin page for the router
and set up port forwarding for port 25. I am already
doing the port forwarding for port 80( apache) and 8080 (tomcat)
and the web server has been working fine all along.


I still get a "connection refused" message when I try the
above telnet command even after stopping and starting
postfix.

Any thoughts?

More info...

Actually, once I used my LOCAL IP address intead of my domain name, I no longer got the "connection refused" message.


telnet mydomain.com smtp - fails
telent WAN-IP stmp -fails

telnet 192.168.0.3 stmp - works


Actually, this seems to be related to the router.

I can't access my WAN IP address behind the router, I have to use my local network IP.

So perhaps this is an issue I need to bring up with NetGear.

My domain is set up in the /etc/hosts file and points to
192.168.0.3, so I think it is mapped to my local ip anyways?

So actually it should work??

Your domain should work when it' in /etc/hosts. Check the forwarding again. You should check the router configuration again. Make sure it forwards connection not only from Internet, but also from your local network.