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:

  Guillaume@endecon.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.197.201]
    SMTP error from remote mail server after RCPT TO:<Guillaume@endecon.co.za>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [l2XPFuZCOvyIK81axe0wUA.za90]
  GuiltyM@TSHWANE.GOV.ZA
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<GuiltyM@TSHWANE.GOV.ZA>:
    550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=52.221.55.32
  guill.marais@supergrp.com
    host za-smtp-inbound-2.mimecast.co.za [41.74.197.201]
    SMTP error from remote mail server after RCPT TO:<guill.marais@supergrp.com>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [-eY58ebiO3KAbddJk3VIzA.za88]
  GuguZ@SeaHarvest.co.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.197.201]
    SMTP error from remote mail server after RCPT TO:<GuguZ@SeaHarvest.co.za>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [-eY58ebiO3KAbddJk3VIzA.za88]
  gugum@ampa.co.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.197.201]
    SMTP error from remote mail server after RCPT TO:<gugum@ampa.co.za>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [-eY58ebiO3KAbddJk3VIzA.za88]
  Guillaume.duToit@bcx.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.193.210]
    SMTP error from remote mail server after RCPT TO:<Guillaume.duToit@bcx.co.za>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [L2LTm-wLN06Aes0G55gOwg.za141]
  guido@videolab.co.za
    host mail.videolab.co.za [41.204.202.54]
    SMTP error from remote mail server after RCPT TO:<guido@videolab.co.za>:
    550 Unroutable address
  gugut@legislature.mpu.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<gugut@legislature.mpu.gov.za>:
    550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=52.221.55.32
  gugus@ananzi.co.za
    host mx.cloudafrica.email [41.79.76.130]
    SMTP error from remote mail server after RCPT TO:<gugus@ananzi.co.za>:
    550 5.7.1 Service unavailable; client [52.221.55.32] blocked using b.barracudacentral.org
  guillen@fcyt.umss.edu.bo
    host aspmx.l.google.com [74.125.68.26]
    SMTP error from remote mail server after RCPT TO:<guillen@fcyt.umss.edu.bo>:
    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 d12si14556306pla.444 - gsmtp
  guillaume@gvb.co.za
    host 1-grid-mx01.co.za [41.185.250.30]
    SMTP error from remote mail server after RCPT TO:<guillaume@gvb.co.za>:
    554 5.7.1 Service unavailable; Client host [52.221.55.32] blocked using b.barracudacentral.org; http://www.barracudanetworks.com/reputation/?pr=1&ip=52.221.55.32
  Guillaume@backsberg.co.za
    host ASPMX.L.GOOGLE.COM [74.125.68.26]
    SMTP error from remote mail server after RCPT TO:<Guillaume@backsberg.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 s5si14313302plg.16 - gsmtp
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 14:40:20 +0800
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