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hotmail block list

    Question

  • Hello, we have a problem when sending mails to @hotmail.it , @live.it , @hotmail.com. We receive back the folowing message:

    Remote MTA mx4.hotmail.com: network error

     - SMTP protocol diagnostic: 550 SC-001 (COL0-MC1-F44) Unfortunately, messages from 151.1.108.64 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 http://mail.live.com/mail/troubleshooting.aspx#errors

    Remote MTA mx3.hotmail.com: network error

     - SMTP protocol diagnostic: 550 SC-001 (SNT0-MC1-F13) Unfortunately, messages from 151.1.108.64 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 http://mail.live.com/mail/troubleshooting.aspx#errors.

    Our address is info@kairosafe.it and our server for sending mailing is mail.libero.it

    How can we solve this problem? Thanks

    Annalisa Quaia

    Tuesday, July 10, 2012 9:21 AM

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