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: tracy.moore@uct.ac.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] 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 [53kj-YG_N76WhyVitmnzUw.za139] williamc@regent.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] 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 [53kj-YG_N76WhyVitmnzUw.za139] vmathai@momentum.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] 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 [53kj-YG_N76WhyVitmnzUw.za139] zamas@joburg.org.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] 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 [53kj-YG_N76WhyVitmnzUw.za139] KerwanH@ishltd.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [53kj-YG_N76WhyVitmnzUw.za139] vbarnard@grinaker-lta.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [53kj-YG_N76WhyVitmnzUw.za139] waders-l@lists.uct.ac.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] 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 [VWrRpR7cPTOeguzvG0gCFw.za139] vivien@drawcard.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [VWrRpR7cPTOeguzvG0gCFw.za139] wiseman.dlamini@huletts.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] 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 [VWrRpR7cPTOeguzvG0gCFw.za139] zanellel@privateproperty.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [VWrRpR7cPTOeguzvG0gCFw.za139] ykruger@grinaker-lta.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [VWrRpR7cPTOeguzvG0gCFw.za139] willemv@value.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] 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 [VWrRpR7cPTOeguzvG0gCFw.za139] vatherk@out.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [VWrRpR7cPTOeguzvG0gCFw.za139] villademer@isat.co.za host ms1.isat.co.za [13.90.96.118] SMTP error from remote mail server after RCPT TO:: 554 The IP address of the sender (13.251.245.207) was found in a DNS blacklist database and was therefore refused.