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: chris@publishingworldsa.com host fallbackmx.spamexperts.eu [149.13.75.27] SMTP error from remote mail server after end of data: 550 High probability of spam chris@superiorsupport.co.za host mx3.mtaroutes.com [130.117.53.188] SMTP error from remote mail server after end of data: 550 High probability of spam chris@redlanddesign.com host mail.redlanddesign.com [202.75.45.39] SMTP error from remote mail server after MAIL FROM: SIZE=3542: 550 Rejected by Barracuda chris@skymap.com host skymap-com.mail.protection.outlook.com [104.47.59.138] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DM6NAM12FT040.eop-nam12.prod.protection.outlook.com] chris@sdklab.com all hosts for 'sdklab.com' have been failing for a long time (and retry time not reached) chris@power.co.za host mail.power.co.za [156.38.230.134] SMTP error from remote mail server after RCPT TO:: 550 Unroutable address Chris@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 chris@grey.fs.school.za host mail.gc.co.za [102.132.13.34] SMTP error from remote mail server after RCPT TO:: 550 5.7.1 ... Relaying denied. Proper authentication required. chris@dupwest.co.za host mail-gateway.imaginet.co.za [41.78.29.100] SMTP error from remote mail server after RCPT TO:: 550 5.7.1 Service unavailable; client [52.221.55.32] blocked using b.barracudacentral.org chris@galvatech.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.210] 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 [zXzYPy5JML2p390mZyP1rg.za111] chris@wpbts.org.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] 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 [r1kr29MTN2WC_frDi__VSw.za99] chris@ewt.org.za host za-smtp-inbound-2.mimecast.co.za [41.74.193.201] 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 [r1kr29MTN2WC_frDi__VSw.za99] chris@coolawnings.co.za host 1-grid-mx04.com [41.61.249.30] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 Service unavailable; Client host [52.221.55.32] blocked using b.barracudacentral.org; http://www.barracudanetworks.com/reputation/?pr=1&ip=52.221.55.32 Chris@cip.co.za host mx1.mweb.net [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 chrianto@iafrica.com host nav-gateway.mweb.co.za [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 chris@centric.za.net host fw1a.centric.za.net [41.185.84.4] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 Service unavailable; Client host [52.221.55.32] blocked using b.barracudacentral.org; http://www.barracudanetworks.com/reputation/?pr=1&ip=52.221.55.32 chridtot@vodamail.com all hosts for 'vodamail.com' have been failing for a long time (and retry time not reached) chris@ilink.nis.za Unrouteable address