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:

  csoonline@eskom.co.za
    host mx1.eskom.seagatestoragecloud.co.za [169.239.240.92]
    SMTP error from remote mail server after RCPT TO:<csoonline@eskom.co.za>:
    550-Callout verification failed:
    550 550 5.1.1 User unknown
  cssl@maties.sun.ac.za
    host mail1.sun.ac.za [146.232.64.12]
    SMTP error from remote mail server after RCPT TO:<cssl@maties.sun.ac.za>:
    550
  csshc@bwa.co.za
    host ASPMX.L.GOOGLE.COM [142.251.12.26]
    SMTP error from remote mail server after RCPT TO:<csshc@bwa.co.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 l70si16166410pgd.704 - gsmtp
  cssjoh001@mail.uct.ac.za
    all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached)
  csrpinc@www.csrpinc.com
    host smtp.secureserver.net [68.178.213.203]
    SMTP error from remote mail server after RCPT TO:<csrpinc@www.csrpinc.com>:
    550 5.1.1 <csrpinc@www.csrpinc.com> Recipient not found.  <http://x.co/irbounce>
  csmuts@univegservices.co.za
    host mail.univegservices.co.za [197.221.2.217]
    SMTP error from remote mail server after RCPT TO:<csmuts@univegservices.co.za>:
    550 Unroutable address
  csrclor@iafrica.com
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<csrclor@iafrica.com>:
    550 rejected because recipient verify failed -- user not found
  csofianos@iafrica.com
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<csofianos@iafrica.com>:
    550 rejected because recipient verify failed -- user not found
  csoden@ccnet.up.ac.za
    host aspmx.l.google.com [142.251.12.26]
    SMTP error from remote mail server after RCPT TO:<csoden@ccnet.up.ac.za>:
    550-5.2.1 The email account that you tried to reach is disabled. Learn more at
    550 5.2.1  https://support.google.com/mail/?p=DisabledUser y16si19743049pfa.364 - gsmtp
  csnaidoo@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<csnaidoo@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  cspc@giraffe.ru.ac.za
    all hosts for 'giraffe.ru.ac.za' have been failing for a long time (and retry time not reached)
  cspandfy@vsnl.com
    all hosts for 'vsnl.com' have been failing for a long time (and retry time not reached)
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Date: Mon, 29 Nov 2021 14:11:51 +0800
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