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: k.barrett@score.pnp.co.za retry timeout exceeded jznmen001@mail.uct.ac.za retry timeout exceeded jzwane@absa-ib.co.za retry timeout exceeded jzeelie@dla.gov.za retry timeout exceeded k-markt@iafrica.com host nav-gateway.mweb.co.za [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550 rejected because recipient verify failed -- user not found k-muenke@mail.co.za all hosts for 'mail.co.za' have been failing for a long time (and retry time not reached) k-isami@rinku.zaq.ne.jp host mgw1.mx.zaq.ne.jp [175.135.253.69] SMTP error from remote mail server after RCPT TO:: 550 Invalid recipient: jzunckel@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550 rejected because recipient verify failed -- user not found k@hotmail.com host hotmail-com.olc.protection.outlook.com [104.47.74.33] SMTP error from remote mail server after pipelined end of data: 550 5.7.1 Unfortunately, messages from [13.251.146.0] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [BN8NAM04FT041.eop-NAM04.prod.protection.outlook.com] jzima@roadwing.co.za host roadwing-co-za.mail.protection.outlook.com [104.47.1.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR01FT004.eop-EUR01.prod.protection.outlook.com]