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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:

  hq@onitek.com.my
    host onitek.com.my [103.6.196.150]
    SMTP error from remote mail server after RCPT TO:<hq@onitek.com.my>:
    550-"JunkMail rejected - omr17.orchid.atmailcloud.com [13.251.245.207]:46344 is
    550 in an RBL: http://www.barracudanetworks.com/reputation/?pr=1&ip=13.251.245.207"
  hqbwexpo@yeah.net
    host yeahmx01.mxmail.netease.com [123.58.177.213]
    SMTP error from remote mail server after RCPT TO:<hqbwexpo@yeah.net>:
    550 User not found: hqbwexpo@yeah.net
  hpsmythf@iafrica.com
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hpsmythf@iafrica.com>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  hploeger@sunbake.co.za
    host mail.sunbake.co.za [129.232.251.212]
    SMTP error from remote mail server after RCPT TO:<hploeger@sunbake.co.za>:
    550 Unroutable address
  hpooke@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hpooke@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  hpjvw@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hpjvw@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  hpedro@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hpedro@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  hpo@imaginet.co.za
    host mail-gateway.imaginet.co.za [41.78.29.100]
    SMTP error from remote mail server after RCPT TO:<hpo@imaginet.co.za>:
    550 5.7.1 Service unavailable; client [13.251.245.207] blocked using b.barracudacentral.org
  hpsmit@gwusa.com
    host gwusa-com.mail.protection.outlook.com [104.47.57.110]
    SMTP error from remote mail server after RCPT TO:<hpsmit@gwusa.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [SN1NAM02FT0060.eop-nam02.prod.protection.outlook.com]
  hpj@isat.co.za
    host ms1.isat.co.za [13.90.96.118]
    SMTP error from remote mail server after RCPT TO:<hpj@isat.co.za>:
    550 Requested action not taken: mailbox unavailable or not local.
  hpmeyer@kalafong.up.ac.za
    host aspmx.l.google.com [74.125.200.26]
    SMTP error from remote mail server after RCPT TO:<hpmeyer@kalafong.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 c9si19309632pgq.163 - gsmtp
  hpkdar001@mail.uct.ac.za
    all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached)