Exchange 2007 - No incomimg mail - URGENT HELP REQUIRED

Hi,
I posted this question already a while a go but did not get an answer. So
trying now again. we recently installed EX2007 with the following
configuration:
1 Server for Hub, CAS and Mailbox, one as Edge transport server. The Edge
Server is connected with one NIC directly to the internet (we did not set up
a firewall yet) and with the other NIC to the switch where all other servers
are connected to (like DC, etc)

I followed quiet precisly the instructions of the set up and we are able to
send outbound mail without problem. When I try to send an email or answer one
of the sent mails, I get the following error:

A configuration error in the e-mail system caused the message to bounce
between two servers or to be forwarded between two recipients. Contact your
administrator.

So we tried also with a differnet mail system and got this error:

SMTP-connection with IP [xx.xx.xx.xx:25] herzustellen Thu 2007-11-01
18:58:06: * IP xx.xx.xx.xx in connection failure cache for up to 5 minutes
due to previous connection failure(s)

I have no idea what could cause this error, any help is very much appreciated.
Thank you

--
Udo

Mark
Mon Nov 12 02:37:18 PST 2007

What's bouncing the messages, Edge or HT?
Work your way from there. Can you drop the Edge out for a test and see
if the HT is fine?
Either do some more of the obvious diagnostics to eliminate one of the
boxes or (since you probably already did) post what the results of the
tests you've done were.

Udo
Mon Nov 12 03:33:01 PST 2007

We tried to ping or telnet the edge server, so it seems to be the edge who is
not letting the message in.

we did not put the edge out for a test yet. Running the best practize wizard
did not bring up any particular error.

are there any other tests i could run?
Thanks for your help

--
Udo
"Mark Arnold [MVP]" wrote:

> What's bouncing the messages, Edge or HT?
> Work your way from there. Can you drop the Edge out for a test and see
> if the HT is fine?
> Either do some more of the obvious diagnostics to eliminate one of the
> boxes or (since you probably already did) post what the results of the
> tests you've done were.
>

Mark
Mon Nov 12 05:07:28 PST 2007

On Mon, 12 Nov 2007 03:33:01 -0800, Udo
<Udo@discussions.microsoft.com> wrote:

>We tried to ping or telnet the edge server, so it seems to be the edge who is
>not letting the message in.
>
>we did not put the edge out for a test yet. Running the best practize wizard
>did not bring up any particular error.
>
>are there any other tests i could run?
>Thanks for your help

If the Edge server isn't even in the "mix" yet then the problem is
your HT (but you knew that!!) So. Is there a receive connector and if
so, what is the configuration?

Udo
Tue Nov 13 13:11:02 PST 2007

we tried to telnet or ping from outside the domain with a completely
different server of a differnt domain, which is not linked to the one we try
to set up. So edge is not listening on port 25, but i checked that its
opened. if nothing is coming from outside in, why should it be the HT? maybe
i got something wrong, thanks for your help and advise again
--
Udo


"Mark Arnold [MVP]" wrote:

> On Mon, 12 Nov 2007 03:33:01 -0800, Udo
> <Udo@discussions.microsoft.com> wrote:
>
> >We tried to ping or telnet the edge server, so it seems to be the edge who is
> >not letting the message in.
> >
> >we did not put the edge out for a test yet. Running the best practize wizard
> >did not bring up any particular error.
> >
> >are there any other tests i could run?
> >Thanks for your help
>
> If the Edge server isn't even in the "mix" yet then the problem is
> your HT (but you knew that!!) So. Is there a receive connector and if
> so, what is the configuration?
>