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  akarnell@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<akarnell@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at
    550-b.barracudacentral.org
    550 http://www.barracudanetworks.com/reputation/?pr=1&ip=13.251.245.207
  akark@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<akark@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at
    550-b.barracudacentral.org
    550 http://www.barracudanetworks.com/reputation/?pr=1&ip=13.251.245.207
  akal@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<akal@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at
    550-b.barracudacentral.org
    550 http://www.barracudanetworks.com/reputation/?pr=1&ip=13.251.245.207
  akadir@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<akadir@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at
    550-b.barracudacentral.org
    550 http://www.barracudanetworks.com/reputation/?pr=1&ip=13.251.245.207
  akadams@gcis.pwv.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<akadams@gcis.pwv.gov.za>:
    550-rejected because 13.251.245.207 is in a black list at
    550-b.barracudacentral.org
    550 http://www.barracudanetworks.com/reputation/?pr=1&ip=13.251.245.207
  akarrim@adhertzberg.co.za
    host adhertzberg-co-za.mail.protection.outlook.com [104.47.5.36]
    SMTP error from remote mail server after RCPT TO:<akarrim@adhertzberg.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [HE1EUR02FT052.eop-EUR02.prod.protection.outlook.com]
  akafm201@tcn.zaq.ne.jp
    host mgw1.mx.zaq.ne.jp [175.135.253.69]
    SMTP error from remote mail server after RCPT TO:<akafm201@tcn.zaq.ne.jp>:
    550 Invalid recipient: <akafm201@tcn.zaq.ne.jp>
  akadf207@tcn.zaq.ne.jp
    host mgw1.mx.zaq.ne.jp [175.135.253.69]
    SMTP error from remote mail server after RCPT TO:<akadf207@tcn.zaq.ne.jp>:
    550 Invalid recipient: <akadf207@tcn.zaq.ne.jp>