Server 2003 IIS SMTP Server reinstall

I have an exchange 2003 server SP1 running on 2003 server domain controller (SP applied and removed as it stopped the exchange server sending internally or receiving)  - i know not best pratice!

I have noticed that whenever the server is rebooted incoming email was lost in the system.
This was resolved by restarting the SMTP virtual server in ESM when new email would be received and delivered correctly.
However any email received by the exchange server before the SMTP server was restarted would be lost with no NDR report.

So as it seemed to be an issue specific to the SMTP server i decided to reinstall it through Add/remove Programs, Windows Components, Application Server, IIS, SMTP Service.

The SMTP Server is now showing in ESM however now it is not possible to send email internally, externally or to receive email - although i can telnet email in.
Also the POP and NNTP servers do not start in ESM either.

I have reapplied Exchange Service Pack1 with no improvement and am beginning to face the prospect of reinstalling Exchange.

Any help with this would be gratefully received.

(max points available as this is urgent!)
Pete
petesulliAsked:
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gpriceeeCommented:
Hi.  If you right-click the SMTP virtual server in ESM --> Properites --> Access Tab --> Authentication button
is Anonymous access and Integrated Windows authentication checked?

In the Delivery tab --> Outbound Security button, is anonymous access selected?

In the Delivery tab --> Advanced button, is the FQDN correct?
petesulliAuthor Commented:
In Authentication Anonymous Access, Basic Authenication and Integrated Windows Authentication are checked.

In Delivery, Anonymous Access is selected.

In Delivery, Advanced, the FGDN is correct and resolves through Check DNS

If i try to send email this is a typical error message in the Application log:

Event Type:      Warning
Event Source:      MSExchangeMTA
Event Category:      X.400 Service
Event ID:      290
Date:            30/06/2005
Time:            21:02:54
User:            N/A
Computer:      ITWSERVER
Description:
A non-delivery report (reason code unable-to-transfer and diagnostic code unrecognised-OR-name) is being generated for message C=US;A= ;P=ITW Hi-Cone;L=ITWSERVER-050630183515Z-8. It was originally destined for DN:CN=MPRODGER,CN=RECIPIENTS,OU=HICONE,O=ITW HI-CONE§ (recipient number 1), and was to be redirected to . [MTA DISP:RESULT 16 136] (12)

Is this pointing to corrutp X400 address or DNS issue perhaps?

gpriceeeCommented:
You're not going to like the answer to this:
http://support.microsoft.com/default.aspx?scid=kb;en-us;822939

It seems like a reinstall is coming.
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petesulliAuthor Commented:
Well i telneted in and got the following:

ehlo
250-itwserver.HICONE01.CO.UK Hello [127.0.0.1]
250-TURN
250-SIZE
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8bitmime
250-BINARYMIME
250-CHUNKING
250-VRFY
250 OK

If the article is correct i've got lots missing and it looks like you may be right - i don't like the implications at all!!
gpriceeeCommented:
I hope all goes well.  At least the weekend is here.

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petesulliAuthor Commented:
Thanks for your help

Enjoy the points!
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Windows Server 2003

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