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:

  postmaster@surfnet.co.za
    retry timeout exceeded
  info@www.amanispas.co.za
    host www.amanispas.co.za [164.160.91.21]
    SMTP error from remote mail server after RCPT TO:<info@www.amanispas.co.za>:
    550-Please turn on SMTP Authentication in your mail client.
    550-omr23.orchid.atmailcloud.com [13.251.146.0]:53220 is not permitted to relay
    550 through this server without authentication.
  vanbuurensmp@ndm.co.za
    host ndm.co.za [87.76.30.119]
    SMTP error from remote mail server after RCPT TO:<vanbuurensmp@ndm.co.za>:
    550 No Such User Here
  mac@osprey.unisa.ac.za
    host voyager-01.unisa.ac.za [192.96.2.246]
    SMTP error from remote mail server after end of data:
    554 rejected due to spam content
  wallywal@metroweb.co.za
    host pmg2.absolutehosting.co.za [197.81.239.10]
    SMTP error from remote mail server after RCPT TO:<wallywal@metroweb.co.za>:
    550 5.7.1 Service unavailable; client [13.251.146.0] blocked using dnsbl.zapbl.net
  vdwestgh@eskom.co.za
    host mx1.eskom.seagatestoragecloud.co.za [169.239.240.92]
    SMTP error from remote mail server after RCPT TO:<vdwestgh@eskom.co.za>:
    550-Callout verification failed:
    550 550 5.1.1 User unknown
  turkinra@eskom.co.za
    host mx1.eskom.seagatestoragecloud.co.za [169.239.240.92]
    SMTP error from remote mail server after RCPT TO:<turkinra@eskom.co.za>:
    550-Callout verification failed:
    550 550 5.1.1 User unknown
  wesley.charles@eskom.co.za
    host mx1.eskom.seagatestoragecloud.co.za [169.239.240.92]
    SMTP error from remote mail server after RCPT TO:<wesley.charles@eskom.co.za>:
    550-Callout verification failed:
    550 550 5.1.1 User unknown
  werner@produkta.co.za
    host produkta-co-za.mail.protection.outlook.com [104.47.6.36]
    SMTP error from remote mail server after RCPT TO:<werner@produkta.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR02FT044.eop-EUR02.prod.protection.outlook.com]
  tokai@businessnetwork.co.za
    host mail.businessnetwork.co.za [192.185.72.221]
    SMTP error from remote mail server after RCPT TO:<tokai@businessnetwork.co.za>:
    550 No Such User Here
  wichmann.philip@falconequipment.co.za
    host falconequipment-co-za.mail.protection.outlook.com [104.47.2.36]
    SMTP error from remote mail server after RCPT TO:<wichmann.philip@falconequipment.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DB5EUR01FT049.eop-EUR01.prod.protection.outlook.com]
  vangass@pebble-beach.co.za
    host mx2209232.spe.ucebox.co.za [197.242.152.135]
    SMTP error from remote mail server after RCPT TO:<vangass@pebble-beach.co.za>:
    550 No Such User Here"
  wellington@sirpaarl.co.za
    host mx0.zomerlust.com [129.232.149.162]
    SMTP error from remote mail server after pipelined end of data:
    550 Spam score too high (11.2)
  zouhair@lando.co.za
    host mail.lando.co.za [41.203.16.5]
    SMTP error from remote mail server after RCPT TO:<zouhair@lando.co.za>:
    550 Unroutable address
  karrieredirektn@nigeria.multichoice.co.za
    host smtp.mnet.co.za [41.86.109.26]
    SMTP error from remote mail server after RCPT TO:<karrieredirektn@nigeria.multichoice.co.za>:
    550 Rule imposed mailbox access for karrieredirektn@nigeria.multichoice.co.za refused
  tmichael@tml.co.za
    host mail.tml.co.za [185.96.197.186]
    SMTP error from remote mail server after RCPT TO:<tmichael@tml.co.za>:
    550 5.1.1 Recipient unknown <tmichael@tml.co.za>
  internetbankingsupport@bankofathens.co.za
    host bankofathens-co-za.mail.protection.outlook.com [104.47.6.36]
    SMTP error from remote mail server after RCPT TO:<internetbankingsupport@bankofathens.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR02FT055.eop-EUR02.prod.protection.outlook.com]
  ursula_nysschen@fpt.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.197.210]
    SMTP error from remote mail server after RCPT TO:<ursula_nysschen@fpt.co.za>:
    550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [Uu76rk0iNvGI6R4xakr56w.za56]
  ygood@iafrica.co.za
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<ygood@iafrica.co.za>:
    550 rejected because recipient verify failed -- user not found
  murrays@jhb.mustek.co.za
    host mustek-co-za.mail.protection.outlook.com [104.47.10.36]
    SMTP error from remote mail server after RCPT TO:<murrays@jhb.mustek.co.za>:
    550 5.7.1 Service unavailable, Client host [13.251.146.0] blocked using Customer Block list AS(1420) [DB5EUR03FT009.eop-EUR03.prod.protection.outlook.com]
  trevorh@renasa.co.za
    host cluster5.eu.messagelabs.com [85.158.142.101]
    SMTP error from remote mail server after RCPT TO:<trevorh@renasa.co.za>:
    550 Invalid recipient <trevorh@renasa.co.za> (#5.1.1)
  webconference@ananzi.co.za
    host mx.cloudafrica.email [41.79.76.130]
    SMTP error from remote mail server after RCPT TO:<webconference@ananzi.co.za>:
    550 5.1.1 <webconference@ananzi.co.za>: Recipient address rejected:
    undeliverable address: host 10.0.35.24[10.0.35.24] said:
    550 Rejected - Invalid recipient address (in reply to RCPT TO command)
  travis@cyberstudio.co.za
    host mail.cyberstudio.co.za [188.40.1.80]
    SMTP error from remote mail server after RCPT TO:<travis@cyberstudio.co.za>:
    550 Unroutable address
  cplessis@postino.up.ac.za
    host alt4.aspmx.l.google.com [142.250.152.27]
    SMTP error from remote mail server after RCPT TO:<cplessis@postino.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 e20si6920207iow.114 - gsmtp
  tarat@argus.co.za
    host alt3.aspmx.l.google.com [64.233.171.27]
    SMTP error from remote mail server after RCPT TO:<tarat@argus.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 be27si24739208oib.28 - gsmtp
  danielf@ctn.independent.co.za
    host alt1.aspmx.l.google.com [173.194.202.26]
    SMTP error from remote mail server after RCPT TO:<danielf@ctn.independent.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 l17si24370736plg.131 - gsmtp
  rsteen@hakuna.up.ac.za
    host alt2.aspmx.l.google.com [142.250.115.26]
    SMTP error from remote mail server after RCPT TO:<rsteen@hakuna.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 i11si16422190oii.217 - gsmtp
  thivend@infonet.co.za
    host aspmx.l.google.com [142.251.10.27]
    SMTP error from remote mail server after RCPT TO:<thivend@infonet.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 a2si16314170pld.69 - gsmtp
  wikla@polka.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<wikla@polka.co.za>:
    550 rejected because recipient verify failed -- user not found
  wantling@yebo.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<wantling@yebo.co.za>:
    550 rejected because recipient verify failed -- user not found
  tape@polka.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<tape@polka.co.za>:
    550 rejected because recipient verify failed -- user not found
  vbh@global.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<vbh@global.co.za>:
    550 rejected because recipient verify failed -- user not found
  urbgreen@global.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<urbgreen@global.co.za>:
    550 rejected because recipient verify failed -- user not found
  zeny&sandy@inds.co.za
    host mx0.mail.ovh.net [178.33.252.245]
    SMTP error from remote mail server after RCPT TO:<zeny&sandy@inds.co.za>:
    550 5.1.1 <zeny&sandy@inds.co.za>: Recipient address rejected:
    User unknown
  vernonh@nedcor.co.za
    host mxgw06.nedbank.co.za [168.142.192.40]
    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.
  tpilane@sars.co.za
    all hosts for 'sars.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 13:21:16 +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