Mail delivery failed: returning message to sender

[Singnet Mail Delivery System <noreply@singnet.com.sg>]

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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:

  JOHANMATTHff@ICON.CO.ZA
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<JOHANMATTHff@ICON.CO.ZA>:
    550 rejected because recipient verify failed -- user not found
  johanl@polka.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<johanl@polka.co.za>:
    550 rejected because recipient verify failed -- user not found
  johankznjam2@pixie.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<johankznjam2@pixie.co.za>:
    550 rejected because recipient verify failed -- user not found
  johanhuman@yebo.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<johanhuman@yebo.co.za>:
    550 rejected because recipient verify failed -- user not found
  johanh@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<johanh@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  johangs@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<johangs@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  johangr@netactive.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<johangr@netactive.co.za>:
    550 rejected because recipient verify failed -- user not found
  johanj@autoarmor.co.za
    host mx10.mailspamprotection.com [146.66.121.69]
    SMTP error from remote mail server after end of data:
    550 High probability of spam
  Johanita.Burger@nwu.ac.za
    host utl-lnx2.nwu.ac.za [143.160.36.152]
    SMTP error from remote mail server after end of data:
    550 5.7.1 Blocked by SpamAssassin
  johanhuman@camafrica.co.za
    host mx1.tld-mx.com [169.239.218.4]
    SMTP error from remote mail server after end of data:
    550 High probability of spam
  johanita@kabega.co.za
    host f35.digidyna.co.za [196.15.208.196]
    SMTP error from remote mail server after RCPT TO:<johanita@kabega.co.za>:
    550 not local host kabega.co.za, not a gateway
  johankemp99@gmail.com
    host gmail-smtp-in.l.google.com [172.253.118.27]
    SMTP error from remote mail server after RCPT TO:<johankemp99@gmail.com>:
    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 ml4si5906608pjb.50 - gsmtp
  johanjabocs237@gmail.com
    host gmail-smtp-in.l.google.com [172.253.118.27]
    SMTP error from remote mail server after RCPT TO:<johanjabocs237@gmail.com>:
    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 ml4si5906608pjb.50 - gsmtp
  johank@aviation.denel.co.za
    all hosts for 'aviation.denel.co.za' have been failing for a long time (and retry time not reached)
  johanha@aviation.denel.co.za
    all hosts for 'aviation.denel.co.za' have been failing for a long time (and retry time not reached)

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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
To: Recipients <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 15:01:34 +0800

Good Day,
 An exhaustive and meticulous search was conducted and it is in connection with this search that I'm writing to you today base on your surname which you share with a client that is now deceased. Revert back to me for more details to be given to you. 
 Sincerely,
Barr Ben Johnson