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  ddlamini@visionwork.co.za
    host mail.visionwork.co.za [154.0.166.29]
    SMTP error from remote mail server after RCPT TO:<ddlamini@visionwork.co.za>:
    550 5.1.1 sorry, no mailbox here by that name (chkuser)
  ddelport1@mmm.com
    host mx2.hc3069-42.iphmx.com [139.138.33.104]
    SMTP error from remote mail server after RCPT TO:<ddelport1@mmm.com>:
    550 #5.1.0 Address rejected.
  ddewaal@pawc.wcape.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<ddewaal@pawc.wcape.gov.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
  ddevos@leg.ncape.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<ddevos@leg.ncape.gov.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
  dditrans@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<dditrans@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
  ddeyn@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<ddeyn@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
  ddevos1@ford.com
    host cluster4.us.messagelabs.com [67.219.250.193]
    SMTP error from remote mail server after RCPT TO:<ddevos1@ford.com>:
    550 Invalid recipient <ddevos1@ford.com> (#5.1.1)