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Can not receive emails after Exchange 2007 Sp2 update

Posted on 2010-09-16
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Last Modified: 2012-06-22
Dear Experts

I hope some one can help as I have had many hours of frustration on this one. I have recently updated to Exchange 2007sp2 and ever since we have had real email problems. Currently we are unable to receive emails.

Our MX records were set to send mail directly to our mail server, and previously was working fine.

The error message in the log is
"An error occurred while delivering mail to '**@sflgroup.co.uk' on the SMTP server 'localhost'. The error code was 0x800ccc6c. Verify that the mailbox exists and that the Exchange receive connectors are configured properly."

The mailbox exists and I have created new ones and checked these too.

The default receive connector is enabled and settings are as pasted below. i thought last night I had fixed it by also selecting Anonymous users under the permissions group ticking. I received some in tests but now nothing.

Hub Transport - Receive Connectors p1Hub Transport - Receive Connectors p2Hub Transport - Receive Connectors p3
Hub Transport - Receive Connectors p4
In case it is related I will explain my problem 2.
In case of problem with our server I had set up a Google Apps account to catch our mail when we had a problem or our server was down. Then the POP3 connector within SBS 2008 would download these messages and deliver - this too is not working and may be related (although the error message doesn't suggest so)

An error occurred while accessing the mailbox for user '**@sflgroup.co.uk' on the POP3 server 'pop.gmail.com'. The error code was 0x80004005. Verify that the server and account settings are correct, and that the internet connection is functioning properly.

Here is some system info
SBS 2008 SP2 - this is our Domain controller and Mail server
Exchange 2007 SP2
Please note our MX records have all now been pointed to Gmail as a temp fix.

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Question by:NathanLambert
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12 Comments
 

Expert Comment

by:toribenj
ID: 33692130
Maybe try disabling any antivirus software and testing again?
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Author Comment

by:NathanLambert
ID: 33692324
Thanks for your response - AV diabled still no good.
FYI AV not changed from before SP2 installed.
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Expert Comment

by:toribenj
ID: 33693893
Have you changed the port to 587?
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Author Comment

by:NathanLambert
ID: 33695562
No knowingly - where should I check? FYI our firewall currently blocks that port (and obviously did prior to SP2)
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Author Comment

by:NathanLambert
ID: 33695611
I have a quick update on the POP3 side - this is failing for the same reason. That is that the connector sends through email to exchange via SMTP and this too is being rejected for some reason. I had downloaded a third party Exchange POP3 product. This is reporting negative response from SMTP server: 452 4.3.1insufficient system resources. currently SBS server has 820mb on C, he first data storage etc is on D drive with 203Gb free.
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Author Comment

by:NathanLambert
ID: 33695701
C drive space now 1.83gb still no joy
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Expert Comment

by:toribenj
ID: 33695718
what is the third party exchange pop3 product?
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Author Comment

by:NathanLambert
ID: 33696593
It's called 'Exchange POP3' i can see the email being downloaded but when it tries to deliver it via SMTP it fails. I was using the SBS built in POP connector but that wasn't work either - I guess for same reason. N
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Expert Comment

by:toribenj
ID: 33700784
Found this on the exchange pop3 site.  Possible help? http://www.exchangepop3.com/help/faq.proxy.003.html
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Author Comment

by:NathanLambert
ID: 33714562
I don't to have W3proxy as a service in the registry, so can not try this fix. I had on Friday managed to get the POP3 delivering emails, and all was ok over the weekend till this morning. I have restared some services (they hadn't stopped) and have now rebooted the server to try that. The only thing that I think has changed from Friday is space on the C drive is now down to 1.27gb. Does any one know what this min should be? as I said the datastore is housed on a different drive ( D: ) which has over 200gb of space.
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Accepted Solution

by:
NathanLambert earned 0 total points
ID: 33715117
I have solved this problem:
Solution was to to relocate the Exchange Transport queue database to another volume. By default this is installed on the C drive, and requires 4gb of space to run.

I found a very helpful article with all instructions here:

http://exchangeserverpro.com/exchange-server-2007-event-id-15002-and-431-insufficient-system-resources-errors

Thanks to Toribenj for your help
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Expert Comment

by:toribenj
ID: 33715749
Welcome, glad you were able to get it fixed.
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