Hi,

Ik have installed a mailserver with: Postfix, Dovecot and fetchmail.

Most of all works fine:

I can fetch my mail with fetchmail on my server.
I can send mail with Postfix on my server.
I can get my mail with Outlook on my Windows system from my server.

The only that doesn't work is that I can not send mail from my Windows system using my mail server...



When I do a port scan on my mail server all nessesary port are open (110, 143) but port 25 is closed. Isn't this the port that Outlook uses to send mail?

( When I stop Postfix and I start Sendmail I have the same problem )

Can somebody help me?

Greetz
Dion

I now have installed Squirrelmail too and its working OK. Squirrelmail is installed on the mailserver.
So the problem is still the same: How can I use my mailserver from my Windows machine to send email?

Have a look in the maillogs for what happens. I'll bet it's the mynetworks section in main.cf, but post the output of "postconf -n"

This sounds like the mail server is listening only on the loopback interface.

What is the output of

netstat -aln --tcp

or iptables is blocking the port.

iptables -L

Hi

Thanks! You both where right:

I put this line in /etc/postfix/main.cf:

And then I gave the command:

Nothing happens. So I read my /var/log/maillog:
And then I did this:

Setting mynetworks does not change inet_interfaces. In fact, the log message indicates you also changed inet_interfaces. This was the variable change that was required.

mynetworks tells postfix what mail clients to consider as local and hence trusted.

Yes. You are right again. I did some things and I wanted to put the things I did in this forum and then I forgot the inet_interfaces thing.

I did this in the main.cf:

So is it working now?

Yes