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:

  kalvinn@lekana.co.za
    retry timeout exceeded
  kamalan.moodley@chubb.co.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<kamalan.moodley@chubb.co.za>:
    550 rejected because recipient verify failed -- user not found
  kamal@saeon.ac.za
    host aspmx.l.google.com [74.125.24.26]
    SMTP error from remote mail server after RCPT TO:<kamal@saeon.ac.za>:
    550-5.1.1 The email account that you tried to reach does not exist. Please try
    550-5.1.1 double-checking the recipient's email address for typos or
    550-5.1.1 unnecessary spaces. Learn more at
    550 5.1.1  https://support.google.com/mail/?p=NoSuchUser u4si7257425plr.90 - gsmtp
  kamarai@sci.uovs.ac.za
    all hosts for 'sci.uovs.ac.za' have been failing for a long time (and retry time not reached)
  kamalmedical@outlook.com
    host outlook-com.olc.protection.outlook.com [104.47.73.161]
    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. [MW2NAM04FT059.eop-NAM04.prod.protection.outlook.com]
  Kamalan.Govender@dbschenker.com
    host dbschenker-com.mail.protection.outlook.com [104.47.8.36]
    SMTP error from remote mail server after RCPT TO:<Kamalan.Govender@dbschenker.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [AM5EUR03FT058.eop-EUR03.prod.protection.outlook.com]
  kamalp@aviation.denel.co.za
    all hosts for 'aviation.denel.co.za' have been failing for a long time (and retry time not reached)
  kamal@ugu.org.za
    host ugu-org-za.mail.protection.outlook.com [104.47.9.36]
    SMTP error from remote mail server after RCPT TO:<kamal@ugu.org.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR03FT034.eop-EUR03.prod.protection.outlook.com]
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 15:06:38 +0800
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