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: kk.legacy@galileosa.co.za host mail-gw2.pccc.co.za [3.64.82.161] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 : Recipient address rejected: undeliverable address: host 196.22.216.144[196.22.216.144] said: 550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table (in reply to RCPT TO command) kjs@venturenet.co.za host mail.venturenet.co.za [41.203.18.245] SMTP error from remote mail server after RCPT TO:: 550 Unroutable address kjwolf@global.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.197.89 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.197.89 kjs@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.197.89 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.197.89 kk@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: kk@ru.ac.za kkaka@pgwc.gov.za host pgwc-gov-za.mail.protection.outlook.com [104.47.10.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DB5EUR03FT042.eop-EUR03.prod.protection.outlook.com] kk@rau.ac.za all hosts for 'rau.ac.za' have been failing for a long time (and retry time not reached) kjxfah001@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached)