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: diana.vanderschyff@tigerbrands.com host za-smtp-inbound-2.mimecast.co.za [41.74.197.201] 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 [jga56Af3OaqTD7XCDo7_cQ.za50] diana.pretorius@goldfields.co.za host za-smtp-inbound-2.mimecast.co.za [41.74.197.201] 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 [jga56Af3OaqTD7XCDo7_cQ.za50] Diana.Oelofse@nhls.ac.za host tls.imss.mtnbusiness.co.za [196.31.215.14] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 Service unavailable; Client host [52.221.55.32] blocked using sip.invaluement.local; Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32 diana.zala@chuv.hospvd.ch host mx1-pub.chuv.ch [155.105.6.203] SMTP error from remote mail server after initial connection: 554-mx1-pub.chuv.ch 554 Access denied. Reason : Score too low in Senderbase for sender host 52.221.55.32. Check www.senderbase.org for further information diamondl@protem.uct.ac.za host za-smtp-inbound-1.mimecast.co.za [41.74.197.201] 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 [x1V_CijkM2apuTAnrEE5oA.za30] diana@stagnes.org.za host stagnes-org-za.mail.protection.outlook.com [104.47.19.238] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [CT2ZAF01FT014.eop-zaf01.prod.protection.outlook.com] diana.franco@sagepub.co.uk host sagepub-co-uk.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) [DM6NAM12FT031.eop-nam12.prod.protection.outlook.com]