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:

  cathy.zazueta@imperial.edu
    host imperial-edu.mail.protection.outlook.com [104.47.74.10]
    SMTP error from remote mail server after RCPT TO:<cathy.zazueta@imperial.edu>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [BN8NAM04FT024.eop-NAM04.prod.protection.outlook.com]
  cathy@gcis.pwv.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<cathy@gcis.pwv.gov.za>:
    550-rejected because 13.251.197.89 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.197.89
  cathy.marie.d.marday@accenture.com
    host mx0b-001dcc01.pphosted.com [148.163.159.10]
    SMTP error from remote mail server after RCPT TO:<cathy.marie.d.marday@accenture.com>:
    550 5.1.1 User Unknown
  cathy@nisch.org
    host mx1.emailsrvr.com [184.106.54.1]
    SMTP error from remote mail server after RCPT TO:<cathy@nisch.org>:
    554 5.7.1 ACL dns_rbl; Client host [13.251.197.89] blocked using sa-ip4tset.blagr.emailsrvr.com=127.22.0.2 Senderscore. Please visit https://senderscore.org/rtbl/ for more information on why this message could not be delivered (G31)
  cathrine.masete@dha.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<cathrine.masete@dha.gov.za>:
    550-rejected because 13.251.197.89 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.197.89
  cathsinclair@mailshack.com
    host lavabit.com [38.147.122.66]
    SMTP error from remote mail server after RCPT TO:<cathsinclair@mailshack.com>:
    550 ACCOUNT LOCKED - THE ACCOUNT <cathsinclair@mailshack.com> HAS BEEN LOCKED FOR INACTIVITY
  cathrine.nkosi@buhlergroup.com
    host buhlergroup-com.mail.protection.outlook.com [104.47.10.36]
    SMTP error from remote mail server after RCPT TO:<cathrine.nkosi@buhlergroup.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DB5EUR03FT011.eop-EUR03.prod.protection.outlook.com]
  cathjane@gmail.com
    host gmail-smtp-in.l.google.com [172.217.194.26]
    SMTP error from remote mail server after RCPT TO:<cathjane@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 u8si17580015pjd.151 - gsmtp
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 14:01:38 +0800
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