outlook 2003 receving multiple duplicate emails

I recently upgraded our exchange server to exchange10. I have a user running windows XP with outlook 2003. The user is receiving the same email over and over from a user inside our network. How do I get this to stop?
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Check the Outlook client from the sender of the email. Probably his .pst has reached the 2 Gb limit and it is "locked" sending the same message because can not "move it" to the sent email folder
wmccann09Author Commented:
user is receiving the same email over and over from two different senders inside the domain.
Sushil SonawaneCommented:
Check the rules and alert the setting on the outlook.
wmccann09Author Commented:
Checked it. No rules are setup.
Em ManCommented:
For Outlook 2002/XP and 2003

    Connect to your original pst-file by File-> Open-> Outlook Data File… and once opened move all the newly received e-mails to that pst-file.
    Close Outlook and go to Control Panel-> Mail-> button Data Files…-> button E-mail Accounts-> button Next-> at the bottom you can select the original pst-file as the default delivery location and press Finish.
    Press the button Data Files… and remove the other pst-file. If you want to keep your computer clean press the Settings button first and write down the location of the pst-file so you can physically delete the file as well and not just the connection to it.

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