Exchange 2003 mail receipt problem

After a corruption I managed to mount my mailbox store database and re-connect the mailboxes to the users. Though my configuration is same as before, we couldn't receive external emails. I tried to download our pop3 emails which are externally hosted using IGetMail as usual, but IGetMail gives a message "Cannot convert server name to an IP address. Possible incorrect server name" on a regular basis. It sometimes starts to download few emails and gets interrupted. The annoying thing is even those messages that managed to reach our exchange server couldn't be delivered to the corresponding client mailbox. (the clients use outlook 2003 in cached mode).

From the client software side, when we click send/receive we used to get MS Exchange Error, object couldn't be found. Then I set the offline address book to update automatically, then the error message disappeared, but the exchange receipt task hangs at 97%.

From our DC side I get "RPC communication error and LDAP failure". I've never troubleshoot these kind of errors.
 
My Exchange server is down for the past 6 days, please help me to resolve these problems ASAP. Who ever solves this problem will get all the 500 points.

Best Regards,
URWBAsked:
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Computer101Connect With a Mentor Commented:
PAQed with points refunded (500)

Computer101
EE Admin
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NetoMeter ScreencastsCommented:
Hi,
Are the Exchange services running? What error messages do you get in the event log?
Reinstalling the exchange server (the video bellow demonstrates the Exchange 2k reinstall but there is no difference for the E2k3 reinstall):

http://www.netometer.net/samples/reinstalle2k/step1/step1.html

Best Regards,

Dean
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URWBAuthor Commented:
Thank you NetoMeter,

I reinstalled the exchange with no error messages perfectly. The problem came after I exported the mailboxes and reconnected to the server. The error messages are the ones I mentioned above.
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NetoMeter ScreencastsCommented:
Your DC is a separate machine and you get errors on it too?

Can you doublecheck the IP settings for the Exchange and the DC?
It is a good idea to run DCDIAG and NETDIAG and post the erros here. Did you perform a telnet test - sending an email manually to the Exchange server like this:
http://www.netometer.net/samples/telnet/step1.html

Dean
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URWBAuthor Commented:
Dear Dean,

I did the dcdiag and netdiag test for both machines. The error I get (on exchange side) is on trust relationship and LDAP error. But after I do netdiag/fix from the exchange side and dcdiag/fix from the dc side the problem gets fixed. But the message delivering problem persists.

Rahel
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NetoMeter ScreencastsCommented:
Well, let's eliminate at the beginning the client side and IGetMail from the problem.
First can you try to send and e-mail between the users internally using OWA?
If the emails are dispatched correctly then proceed with the telnet test. Telnet on port 25 to your exchange server and send manually a message to a user. Check from OWA  whether the message is delivered. After that check the message delivery from the Outlook client.

Dean
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URWBAuthor Commented:
Now all MS exchange services start automatically and IGetMail downloaded all external emails. The problem now is the MS Exchange MTA service starts and then stops, notifying that some services start then stop. It must be due to it that the emails couldn't be delivered to individual mailboxes. Now we even can't exchange internal emails.

Do you have any idea on what to do?

Many thanks
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NetoMeter ScreencastsCommented:
Raise the logging level for the MTA and post the errors in the Application log.

Dean
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URWBAuthor Commented:
In the event viewer I get the following error message:

Product: Exchange
Event ID: 9405
Source: MSExchangeMTA
Version: 6.0
Component: Message Transport Agent
Symbolic Name: MTA09405
Message: An unexpected error has occurred which may cause the MTA to terminate. Error: {error code}. [{Value} {Value} {value}] (16)
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URWBAuthor Commented:
It seems the experts abandoned my questions.

I managed to resolve one of the above problems (starting up the MSE MTA) by uninstalling then reinstalling the smtp service and exchange server 2003. Now locally we can exchange emails, but the external emails downloaded by IGetMail still don't reach the individual mailboxes. Also the local emails are also deleted automatically, after the arrival to the mailbox. May be these two problems have common issues, but couldn't trace it. With the pace I am fixing the problem now I don't think I will finish in a month time.

Can anyone save me from this hell?

Sembee, I normally see your exchange solutions and you are quick in replying them. I am a regular user of your site and I found your solutions very useful; would you please extend your helping hands on this issue too?

Thank you.
Rw
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URWBAuthor Commented:
I solved the above problem by unchecking the option that prevents the emails to be left in local mailboxes to avoid duplication from IGetMail Administration window. Now all emails come and go through peacefully.

Many thanks and please close this question.
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URWBAuthor Commented:
Please close the question. Thank you.
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