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: iks_mru@intnet.mu host mx2.intnet.mu [202.123.2.25] SMTP error from remote mail server after initial connection: 554 iron8.intnet.mu ikngama@mpg.gov.za host securemail-mx2.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 ikhoza@nel.mpu.gov.za host securemail-mx2.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 ikgamany@icd.pwv.gov.za host securemail-mx2.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 ikhapa@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 ikanengta@sabc.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.197.210] SMTP error from remote mail server after RCPT TO:: 550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [Y_amLvchOPuwKRLQwce_lg.za22] ike@tri-star.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.197.210] SMTP error from remote mail server after RCPT TO:: 550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [1Bf5wOcpOQGTfboPbNuppA.za22] ike@parsonseng.co.za host mxfilter.mxsecure.co.za [216.55.103.181] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 Service unavailable; Client host [52.221.55.32] blocked using spamip.dnsbl ikemp@hd.moorestephens.co.za host hd-moorestephens-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) [DB5EUR03FT010.eop-EUR03.prod.protection.outlook.com] ikeh@civic.mangaung.co.za all hosts for 'civic.mangaung.co.za' have been failing for a long time (and retry time not reached)