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: id0011@sohu.com host sohumx2.sohu.com [123.125.123.35] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 : Recipient address rejected: User unknown in local recipient table ida@rage.co.za host mail.rage.co.za [213.133.104.106] SMTP error from remote mail server after RCPT TO:: 550 Unroutable address Ida.tombeen@xps.cfgrp.co.za host in.hes.trendmicro.eu [52.58.62.239] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 : Recipient address rejected: NO-DOMAIN. icv@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 ida@conticon.co.za host conticon-co-za.mail.protection.outlook.com [104.47.19.110] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [JN2ZAF01FT008.eop-zaf01.prod.protection.outlook.com] icu@inetcom.co.za host mx1.cpmx.co.za [169.239.218.2] SMTP error from remote mail server after RCPT TO:: 550 No Such User Here" id@student.kdupg.edu.my host student-kdupg-edu-my.mail.protection.outlook.com [104.47.26.74] SMTP error from remote mail server after pipelined end of data: 550 5.4.1 All recipient addresses rejected : Access denied. AS(201806271) id@motheo.co.za all hosts for 'motheo.co.za' have been failing for a long time (and retry time not reached)