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  1. #1
    Join Date
    Jun 2002

    Emails bounced by hotmail with error 550 SC-002

    Outlook/Hotmail is bouncing emails coming from one of my Server IPs ()
    We had worm incident somedays ago but solved it so we are not in blacklists however
    Hotmail/Outlook still refuse emails sent from our server with the following message

    550 SC-002 (COL0-MC2-F36) Unfortunately, messages from weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to

    I have tried this link suggested by and old thread, but donīt know what else to do.

    Finally I also tried the Smart Network Data Services page
    and notice the message E-mail address harvesting

    What does it mean?

  2. You should contact microsoft directly, looks they still have a ban on your ip.
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  3. #3
    Your IP is blacklisted by Microsoft. You can check the detailed explanation of why it happened on the URL mentioned in the bounce back message. Search for the error code "550 SC-002".

    You have to contact Microsoft directly in such a case with as much details as possible and they mostly reply within 24 hours. Fill in the below support form:
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    | Monthly and Task basis services.
    | MSN : madaboutlinux[at] | Skype : madaboutlinux

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