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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:

  hill@opusnet.com
    host mx.opusnet.com [199.101.208.4]
    SMTP error from remote mail server after RCPT TO:<hill@opusnet.com>:
    550 No such recipient here
  hillmanh@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hillmanh@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  hillaryblockhillwolf@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hillaryblockhillwolf@mweb.co.za>:
    550 rejected because recipient verify failed -- user not found
  hillian_crooks@trinsys.com
    host trinsys-com.mail.protection.outlook.com [104.47.66.10]
    SMTP error from remote mail server after RCPT TO:<hillian_crooks@trinsys.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [MW2NAM12FT005.eop-nam12.prod.protection.outlook.com]
  hillary.makgoe@lgnet.org.za
    host mxc01.mxrc.co.za [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<hillary.makgoe@lgnet.org.za>:
    550 relay not permitted
  hillfs@dixiz.com
    host mail.dixiz.com [51.38.19.83]
    SMTP error from remote mail server after RCPT TO:<hillfs@dixiz.com>:
    550 5.1.1 <hillfs@dixiz.com>: Recipient address rejected:
    User unknown in virtual mailbox table