Mail delivery failed: returning message to sender

[Singnet Mail Delivery System]

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:

  amandaroberts@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<amandaroberts@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  amandap@nfp.nedbank.co.za
    host mxgw08.nedbank.co.za [168.142.192.79]
    SMTP error from remote mail server after DATA:
    550 #5.7.1 Your access to submit messages to this e-mail system has been rejected.
  amandandanny@msn.com
    host msn-com.olc.protection.outlook.com [104.47.14.33]
    SMTP error from remote mail server after pipelined end of data:
    550 5.7.1 Unfortunately, messages from [13.251.146.0] 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. [VI1EUR04FT043.eop-eur04.prod.protection.outlook.com]
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 13:47:46 +0800
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