Problem With Exchange Configuration On my SBS 2000

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    balluche
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    #119321

    I have an SBS 2000

    Recently I changed the A records from my isp (and so pop3 mailboxes) to my fixed IP of our organisation exchange server.
    Everything looks fine until, for a reason i don’t understand, i received to some sent e-mails (not all e-mails) the following error message:

    [email protected]‘ on 01/12/2006 11:33
    You do not have permission to send to this recipient. For assistance, contact your system administrator.
    … Sender IP must resolve>

    What did i do wrong?

    Thank you all in advance for your answers.

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