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: chrisvz@4online.co.za host vmail.dial-up.net [197.97.195.226] SMTP error from remote mail server after RCPT TO:: 550 Unknown user chritzph@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 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 chriswood@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 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 chrisw@mtnloaded.co.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 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 chrisvg@otpmleg1.ecape.gov.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 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 chrisvd@me.com host mx01.mail.icloud.com [17.57.152.9] SMTP error from remote mail server after pipelined end of data: 554 5.7.1 [CS01] Message rejected due to local policy. Please visit https://support.apple.com/en-us/HT204137 chrisvanrooyen@ru.ac.za host mx.ru.ac.za [146.231.128.53] SMTP error from remote mail server after RCPT TO:: 550 Invalid Rhodes University e-mail address: chrisvanrooyen@ru.ac.za chriswarner@vodamail.co.za host mx1.vodamail.co.za [196.11.146.148] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 : Recipient address rejected: User unknown in local recipient table chriswarmer@vodamail.co.za host mx1.vodamail.co.za [196.11.146.148] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 : Recipient address rejected: User unknown in local recipient table chrisvink@vodamail.co.za host mx1.vodamail.co.za [196.11.146.148] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 : Recipient address rejected: User unknown in local recipient table chrisv@aviation.denel.co.za all hosts for 'aviation.denel.co.za' have been failing for a long time (and retry time not reached)