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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:

  jaunren1@iburst.co.za
    host mailguard6.neotel.co.za [41.168.2.5]
    SMTP error from remote mail server after RCPT TO:<jaunren1@iburst.co.za>:
    554 5.7.1 <jaunren1@iburst.co.za>: Recipient address rejected:
    Access denied
  jaun@bsiafrica.com
    host mail.bsiafrica.com [196.22.132.9]
    SMTP error from remote mail server after RCPT TO:<jaun@bsiafrica.com>:
    550 Unroutable address
  jastrydom@pansolutions.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.193.210]
    SMTP error from remote mail server after end of data:
    554 Email rejected due to security policies - https://community.mimecast.com/docs/DOC-1369#554 [pbLqAjmSNUm3fK4hdbe9ig.za141]
  jauss@iafrica.com.na
    all hosts for 'iafrica.com.na' have been failing for a long time (and retry time not reached)
  jastorm@webonlinemail.co.za
    host mail.webonlinemail.co.za [41.72.154.148]
    SMTP error from remote mail server after RCPT TO:<jastorm@webonlinemail.co.za>:
    550 sorry, no mailbox here by that name. (#5.7.17)
  jatthaartours@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<jatthaartours@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  JATHfART@MHh.CO.ZA
    host garmr.iewc.co.za [154.73.34.79]
    SMTP error from remote mail server after RCPT TO:<JATHfART@MHh.CO.ZA>:
    550 Recipient domain (mhh.co.za) not in my list of authoritive domains.