Mail delivery failed: returning message to sender

Mail Delivery System via Gdb <[email protected]>
Newsgroups gmane.comp.gdb.devel
Message-ID <[email protected]>
This message was created automatically by mail delivery software.

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:

  [email protected]
    host hotmail-com.olc.protection.outlook.com [104.47.11.33]
    SMTP error from remote mail server after pipelined MAIL FROM:<[email protected]> SIZE=3815:
    550 5.7.1 Unfortunately, messages from [92.204.162.165] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3140). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [VI1EUR02FT053.eop-EUR02.prod.protection.outlook.com 2023-12-19T18:14:42.500Z 08DC0066121CA910]
(unnamed) (message/delivery-status, 558 B) - not displayed
(unnamed) (message/rfc822, 1.4 KB) - not displayed
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