Re: mail delivery problems

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I have removed the FE server from the Domain Exchange Server Group and then
added it back in but still the same.

Again Just to Summarise

I have two servers in a routing group. I have a SMTP connector setup for
Internet mail. If on the SMTP connector I set the FE server as the bridgehead
server and remove the BE server from the list of servers mail stops flowing
and is backed up on the BE server in a queue with the the bridgehead ID
_ac8f9f1ebaf8034ab47c84d3e52c77ba (SMTP Connector). If I replace the FE
server with the BE server on the SMTP connector mail is routed to the
Internet.

If I try to connect to the FE server from the BE at a telnet session I get:

ehlo
250-Domain.co.uk Hello [192.168.20.45]
250-TURN
250-SIZE 20480000
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8bitmime
250-BINARYMIME
250-CHUNKING
250-VRFY
250-X-EXPS GSSAPI NTLM LOGIN
250-X-EXPS=LOGIN
250-AUTH GSSAPI NTLM LOGIN
250-AUTH=LOGIN
250-X-LINK2STATE
250-XEXCH50
250 OK

Any thoughts would be much appreciated



"Paul" wrote:

Hi Paul,

1. The servers have not been moved in AD.
2. Both the FE and BE servers are in their respective Domain Exchange
Servers Groups.
3. I am not sure what areas I should be looking at when I run WinRoute but
here is what I can see:

First glance it all looks OK, the FE and BE server are reporting they are
connected to the Master. Both servers and all connectors have the green ticks.

There is one routing group 'not found in Directory' this is an old routing
group that is in the trash can it has one server in this RG and no
connectors, unfortuatley the server in this old RG is not experiencing any of
my current problems.

I am going to guess this is not releated to my problem but one I need to
come back to and try and clean up at a later date!

Also the _ac8f9f1ebaf8034ab47c84d3e52c77ba_s adrress is the address of my
bridgehead server. So when mail is queued on the BE server in a queue called
_ac8f9f1ebaf8034ab47c84d3e52c77ba_s(smtp
connector) it must be waiting delivery to the bridgehead server.


"Rich Matheisen [MVP]" wrote:

Paul <Paul@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

[ snip ]

To summarise:

Routing Group 1 consists of FE1 and BE1 server.

If I make FE1 the bridgehead server, BE1 fails to deliver mail to FE1. If I
make BE1 the bridgehead server it will send email to the Internet.

I can telnet from BE1 to FE1 Ok and get an ehlo response.

I can telnet from FE1 to BE1 and sometimes I am able to an ehlo response but
sometimes it is returned with an unrecognized command.

I have ran the exchange analyzer on FE1 server and it has not found any
problems.

Does anyone have any ideas where the problem could lie? Or does anyone know
of any tests that I could perform?

Connectivity may be okay between the servers, but you haven't veriied
that the servers can authenticate with each other (which all Exchange
servers do).

Have you moved the server accounts in the AD? Did you restart the
server adter you did that?

Are the servers all in the Domain Exchange Servers group in their
respective domains? You might try shutting down Exchange, removing its
account from the group and then adding it back. Then restart the
server.

What does WinRoute tell you about the various connections, routing
groups, servers, etc.?

--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
Don't send mail to this address mailto:h.pott@xxxxxxxxxxxxx
Or to these, either: mailto:h.pott@xxxxxxxxxxxxxxx mailto:melvin.mcphucknuckle@xxxxxxxxxxxxx mailto:melvin.mcphucknuckle@xxxxxxxxxxxxxxx

.

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