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: john_wicks@mpsa.co.za retry timeout exceeded johnb@global.adcorp.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.197.201] SMTP error from remote mail server after end of data: 554 Email rejected due to security policies - https://community.mimecast.com/docs/DOC-1369#554 [SimlqZCqNpeMkurZns-r7w.za80] johnb@geotab.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.197.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [SimlqZCqNpeMkurZns-r7w.za80] johnb@necsa.co.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.197.89 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.197.89 johnandtam@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 johnandmarie@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 johnade@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 johna@kprsa.co.za host 62b73aaf.22.ik2.io [207.81.189.178] SMTP error from remote mail server after RCPT TO:: 557 Email address - johna@kprsa.co.za - is not available here. Disconnecting... johnb@jhb.mustek.co.za host mustek-co-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) [DB5EUR03FT031.eop-EUR03.prod.protection.outlook.com] johnb@daikin.co.za host daikin-co-za.mail.protection.outlook.com [104.47.0.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [HE1EUR01FT036.eop-EUR01.prod.protection.outlook.com] johnathan.godden@za.pwc.com host mx08-00096701.pphosted.com [91.207.212.1] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 User Unknown johnalexander@siemens.com host siemens-com.mail.protection.outlook.com [104.47.0.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [HE1EUR01FT021.eop-EUR01.prod.protection.outlook.com] johna.kruger@nwu.ac.za host utl-lnx2.nwu.ac.za [143.160.36.152] SMTP error from remote mail server after RCPT TO:: 550 5.0.0 ... User unknown