Mail delivery failed: returning message to sender

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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:

  djbrits@iafrica.com
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<djbrits@iafrica.com>:
    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
  djc1@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<djc1@mweb.co.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
  Djacobs@mpg.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<Djacobs@mpg.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
  djamfs@kodak.com
    host kodak-com.mail.protection.outlook.com [104.47.55.110]
    SMTP error from remote mail server after RCPT TO:<djamfs@kodak.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [MW2NAM10FT025.eop-nam10.prod.protection.outlook.com]
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 14:23:35 +0800
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