Thank you all clarifiyng that my ISP is blocking port 25. This way I can insist
that they are blocking port 25. Due to my weak knowledge I had to accept what
they claimed that it is not blocked.
> Subject: Re: no route to host
> To: postfix-users@postfix.org
> Date: Sun, 29 Jul 2012 19:29:10 -0400
> From: wie...@porcupine.org
>
> Engin qwert:
> > root@xn--hadibakalm-5ub:~# telnet 168.100.189.2 25Trying
> > 168.100.189.2...telnet: Unable to connect to remote host: No route to host
>
> Then your ISP is blocking your outbound SMTP connections.
>
> I was able to connect to your server's SMTP port from 168.100.189.2
> (you should see that in your maillog file).
>
>
> Wietse
