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  b3n@cad-cae.com
    host maynenet.com [191.96.165.30]
    SMTP error from remote mail server after RCPT TO:<b3n@cad-cae.com>:
    550
  b4bajooste@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<b4bajooste@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
  b2urban@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<b2urban@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
  b2000bernie@iafrica.com
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<b2000bernie@iafrica.com>:
    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