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:

  jns@yebo.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<jns@yebo.co.za>:
    550 rejected because recipient verify failed -- user not found
  jnrstudent@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<jnrstudent@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  jnner.d@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<jnner.d@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  jnsherring@iburst.co.za
    host mailguard13.neotel.co.za [41.168.131.16]
    SMTP error from remote mail server after RCPT TO:<jnsherring@iburst.co.za>:
    554 5.7.1 <jnsherring@iburst.co.za>: Recipient address rejected:
    Access denied
  jnothlin@op.up.ac.za
    host aspmx.l.google.com [172.217.194.27]
    SMTP error from remote mail server after RCPT TO:<jnothlin@op.up.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 f3si11875055pgm.186 - gsmtp
  jnsjoh@mail.uct.ac.za
    all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached)
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 15:00:38 +0800
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