[Secretbunker] Mail delivery failed: returning message to sender

[Mail Delivery System]

This message was created automatically by mail delivery software.

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:

  j4reeb at gmail.com
    (ultimately generated from cats at nmaf.org)
    host productio-tcloadba-tkyjfaz4ap1l-328615543.us-west-2.elb.amazonaws.com [54.244.228.61]
    SMTP error from remote mail server after end of data:
    550 5.7.1 [CS] Message blocked. If this is a false positive, please report this to your hosting service provider. See https://console.mailchannels.net/insights/bounce?auid=wwwh&sender=secretbunker%40ucc.gu.uwa.edu.au&txid=7e03ad91
  curlyhairedkitty at gmail.com
    (ultimately generated from cats at nmaf.org)
    host productio-tcloadba-tkyjfaz4ap1l-328615543.us-west-2.elb.amazonaws.com [54.244.228.61]
    SMTP error from remote mail server after end of data:
    550 5.7.1 [CS] Message blocked. If this is a false positive, please report this to your hosting service provider. See https://console.mailchannels.net/insights/bounce?auid=wwwh&sender=secretbunker%40ucc.gu.uwa.edu.au&txid=7e03ad91
  abqvicki at yahoo.com
    (ultimately generated from cats at nmaf.org)
    host productio-tcloadba-tkyjfaz4ap1l-328615543.us-west-2.elb.amazonaws.com [54.244.228.61]
    SMTP error from remote mail server after end of data:
    550 5.7.1 [CS] Message blocked. If this is a false positive, please report this to your hosting service provider. See https://console.mailchannels.net/insights/bounce?auid=wwwh&sender=secretbunker%40ucc.gu.uwa.edu.au&txid=7e03ad91
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From: "Jimmie Flanagan" <padi at nla.gov.au>
Subject: Re:don't miss out!
Date: no date
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Url: http://lists.ucc.gu.uwa.edu.au/pipermail/secretbunker/attachments/20160625/2bdcdb6b/attachment-0001.eml