Hey, thank you all for the quick replays. No, I am on the Metronet network a
Turkish ISP. In Turkey the port 25 is also blocked as well. So I set my postfix
on port 587. But the strange part of the problem the clients of the mail server
could both Pop3 and SMTP successfully but the local machine itself cannot send
mail but could Pop3.
> Date: Fri, 13 Jul 2012 11:49:50 +0100
> From: dun...@presidium.org
> To: h.rei...@thelounge.net
> CC: postfix-users@postfix.org
> Subject: Re: "no route to host" error message
>
>
> On Fri, 13 Jul 2012, Reindl Harald wrote:
>
> >> --------------
> >> 679D8120710 611 Fri Jul 13 12:34:05 some_sender@some_domain.tld
> >> (connect to mx2.hotmail.com[65.55.92.184]:25: No route to
> >> host)
> >> some_receip...@hotmail.com
> >> --------------
>
> > this is clearly a network-layer problem
> > what says "ping 65.55.92.184" from this machine and other ones?
>
> Hi,
>
> You're not on a RedStation dedicated server are you, per-chance? The
> reason I ask, is that I encountered this exact error yesterday and
> investigating into it with a tcpdump, showed RedStation's gateway was
> filtering SMTP connections, forcing it through their own (exceptionly
> poorly configured) relay. The response I was getting back when
> attempting outbound port 25 connections was 'no route to host'.
>
> This is very annoying as I've had to smarthost mail through a different
> box on port 587, to avoid their relay! Was not made aware of this before
> purchasing the server and it's not in their T&Cs.
>
> Cheers,
> Duncan.
