[TiLUG] Mail delivery failed: returning message to sender

[Mail Delivery System]

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A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  luigistagnitto@live.it
    host eur.olc.protection.outlook.com [104.47.13.33]
    SMTP error from remote mail server after pipelined MAIL FROM:<tilug@lists.linux.it> SIZE=12113:
    550 5.7.1 Unfortunately, messages from [66.155.106.28] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [HE1EUR04FT033.eop-eur04.prod.protection.outlook.com]
  jessica.balestrini@live.it
    host eur.olc.protection.outlook.com [104.47.13.33]
    SMTP error from remote mail server after pipelined MAIL FROM:<tilug@lists.linux.it> SIZE=12113:
    550 5.7.1 Unfortunately, messages from [66.155.106.28] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [HE1EUR04FT033.eop-eur04.prod.protection.outlook.com]
  floresturbo@hotmail.it
    host eur.olc.protection.outlook.com [104.47.14.33]
    SMTP error from remote mail server after pipelined MAIL FROM:<tilug@lists.linux.it> SIZE=12113:
    550 5.7.1 Unfortunately, messages from [66.155.106.28] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [VI1EUR04FT038.eop-eur04.prod.protection.outlook.com]
  nicola17@hotmail.it
    host eur.olc.protection.outlook.com [104.47.14.33]
    SMTP error from remote mail server after pipelined MAIL FROM:<tilug@lists.linux.it> SIZE=12113:
    550 5.7.1 Unfortunately, messages from [66.155.106.28] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [VI1EUR04FT038.eop-eur04.prod.protection.outlook.com]
  tepasia@libero.it
    all hosts for 'libero.it' have been failing for a long time (and retry time not reached)
  magi1974@libero.it
    all hosts for 'libero.it' have been failing for a long time (and retry time not reached)
  crisxcris@virgilio.it
    all hosts for 'virgilio.it' have been failing for a long time (and retry time not reached)
  misil-varenne@tiscali.it
    all hosts for 'tiscali.it' have been failing for a long time (and retry time not reached)
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