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Pop3 connector

Posted on 2006-10-30
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Last Modified: 2013-03-11
Exchange 2003 6.5 with sp2
Exchange has been running great for 3 years...
Exchange crashed with no remorse Friday.  I reinstalled exchange.  Outgoing SMTP and internal e-mail is working fine.  We use an external POP3 server for our email.  Exhchange grab the mail and Distributes internally.  

It was working fine before the reload. Now, on the mail it gets from the external POP3 server, it is adding a prefix to the address and the mail is deemed undeliverable by the local exchange server.

it is adding the "mspop3connector". (see below)

The following recipient(s) could not be reached:

      mspop3connector.david@line-xindiana.com on 10/30/2006 2:31 PM
            The e-mail account does not exist at the organization this message was sent to.  Check the e-mail address, or contact the recipient directly to find out the correct address.

All help is greatly appreciated.
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Question by:superclyde
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Accepted Solution

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Bupender earned 500 total points
ID: 17839058
Run IMBREG.exe from c:\program files\microsoft windows small business server\networking\pop3
Then do a IISReset.
Check if the problem is resolved.
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Author Comment

by:superclyde
ID: 17839535
That was it.  What is that????  You da man!!!!  No Really, What is that "imbreg"?

Thanks a million!!
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by:Bupender
ID: 17839561
No Worries.

IMBREG.exe is used to Re-register the POP3 Connector event sink in Microsoft Internet Information Services (IIS)
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Expert Comment

by:MazingTree
ID: 25275545
I had this problem, and we also excluded the following folders from AVG's scanning. I carried out both fixes so not sure which worked, but the problem seems to have been resolved.

Fix 2.
Adjust AVG or other anti-virus scanning to exclude the folders below
C:\Program Files\Microsoft Windows Small Business Server\Networking\POP3\Incoming mail\
C:\Program Files\Microsoft Windows Small Business Server\Networking\POP3\Failed mail\
C:\Program Files\Exchsrvr\
D:\Exchsrvr\

Use the above in the Exception list for AVG Resident shield settings, but also for any other scans
In AVG Scan set up scheduled scan for C: and D: then exclude the POP3 folder in the above two paths. and the two exchsrv folders.
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Expert Comment

by:MazingTree
ID: 25275561
Update to my previous post: Wheere I list
C:\Program Files\Exchsrvr\
D:\Exchsrvr\
The point is to exclude any of the servers exchsrv folders, you may only have the:
C:\Program Files\Exchsrvr\ on your server.
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Expert Comment

by:Jacquesviljoen13
ID: 38975354
I have done both of the above but problem is still there it works for a while to run imbreg.exe and then  a while later the problem is back.Server is SBS 2003 Prem.

The receiving user is on the local network and the sending user is on vpn connection to server and yet it still returns as follow  mspop3connector.user@domain.co.za.

Could anybody assist please?
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