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: jst@rau.ac.za retry timeout exceeded jst@tfda.co.za host mx1.hugemail.co.za [130.117.53.188] SMTP error from remote mail server after end of data: 550 High probability of spam jstander@weathersa.co.za host smtp.weathersa.co.za [196.24.218.53] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 E-mail firewall rules determined that 13.251.162.251 is not allowed to send e-mail to (*)jstander@weathersa.co.za. jssecurity@hotmail.com host hotmail-com.olc.protection.outlook.com [104.47.17.161] SMTP error from remote mail server after RCPT TO:: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). jsscar@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached) jstamboul@concordetravel.co.za all hosts for 'concordetravel.co.za' have been failing for a long time (and retry time not reached)