Mail delivery failed: returning message to sender

Singnet Mail Delivery System noreply@singnet.com.sg
Mon Nov 29 07:00:55 GMT 2021


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:

  jacob@pxl.co.za
    host mail.pxl.co.za [196.22.142.209]
    SMTP error from remote mail server after RCPT TO:<jacob@pxl.co.za>:
    550 Unroutable address
  JacobieS@marouns.co.za
    host 1-grid-mx03.co.za [41.61.250.80]
    SMTP error from remote mail server after RCPT TO:<JacobieS@marouns.co.za>:
    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
  JacobM@brumafinance.co.za
    host brumafinance-co-za.mail.protection.outlook.com [104.47.8.36]
    SMTP error from remote mail server after RCPT TO:<JacobM@brumafinance.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [AM5EUR03FT039.eop-EUR03.prod.protection.outlook.com]
  JacobM3@openserve.co.za
    host smtp.openserve.co.za [165.143.155.196]
    SMTP error from remote mail server after initial connection:
    554-smtp-out1.telkom.co.za
    554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.
  jacob.nene@dcs.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<jacob.nene@dcs.gov.za>:
    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
  jacobmatlou@labour.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<jacobmatlou@labour.gov.za>:
    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
  jacob.duiker@labour.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<jacob.duiker@labour.gov.za>:
    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
  jacob.mothmogolo@wesizwe.com
    host cuda.wesizwe.com [154.72.46.60]
    SMTP error from remote mail server after RCPT TO:<jacob.mothmogolo@wesizwe.com>:
    554-Service unavailable; Client host [omr21.orchid.atmailcloud.com] blocked using
    554-Barracuda Reputation;
    554 http://www.barracudanetworks.com/reputation/?r=1&ip=52.221.55.32
  jacobl@gpg.gov.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.193.210]
    SMTP error from remote mail server after RCPT TO:<jacobl@gpg.gov.za>:
    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 [MTbPw3X_NS6kq0HPgb31yw.za91]
  Jacob.Modzuka@gauteng.gov.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.193.210]
    SMTP error from remote mail server after RCPT TO:<Jacob.Modzuka@gauteng.gov.za>:
    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 [MTbPw3X_NS6kq0HPgb31yw.za91]
  Jacob.Baloyi@gauteng.gov.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.193.210]
    SMTP error from remote mail server after RCPT TO:<Jacob.Baloyi@gauteng.gov.za>:
    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 [MTbPw3X_NS6kq0HPgb31yw.za91]
  jacob.daniel@allianzcornhill.co.in
    host mxb-00137205.gslb.pphosted.com [185.132.182.229]
    SMTP error from remote mail server after pipelined DATA:
    550 5.1.1 User Unknown
  jacob.maseko@natref.com
    host natref-fw1.natref.com [196.35.252.130]
    SMTP error from remote mail server after RCPT TO:<jacob.maseko@natref.com>:
    550 5.5.0 no such recipient - jacob.maseko@natref.com
  JacoBotha@capitecbank.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.193.201]
    SMTP error from remote mail server after RCPT TO:<JacoBotha@capitecbank.co.za>:
    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 [wzj008xHO9qH9Po7CfNhdg.za77]
  jacoba.roodt@coriscapital.com
    host za-smtp-inbound-1.mimecast.co.za [41.74.193.201]
    SMTP error from remote mail server after RCPT TO:<jacoba.roodt@coriscapital.com>:
    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 [wzj008xHO9qH9Po7CfNhdg.za77]
  Jaco.VanWyk@kempston.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.193.201]
    SMTP error from remote mail server after RCPT TO:<Jaco.VanWyk@kempston.co.za>:
    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 [wzj008xHO9qH9Po7CfNhdg.za77]
  jaco.vantonder@kempston.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.193.201]
    SMTP error from remote mail server after RCPT TO:<jaco.vantonder@kempston.co.za>:
    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 [wzj008xHO9qH9Po7CfNhdg.za77]
  jaco.vanderwesthuizen@bcx.co.za
    host za-smtp-inbound-1.mimecast.co.za [41.74.197.210]
    SMTP error from remote mail server after RCPT TO:<jaco.vanderwesthuizen@bcx.co.za>:
    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 [d2oylAPZOZmetrPK38xKqQ.za102]
  jaco_r@iburst.co.za
    host mailguard13.neotel.co.za [41.168.131.16]
    SMTP error from remote mail server after RCPT TO:<jaco_r@iburst.co.za>:
    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
  jaco.vorster@weylandtshome.co.za
    host zalc.e-purifier.com [41.168.131.16]
    SMTP error from remote mail server after RCPT TO:<jaco.vorster@weylandtshome.co.za>:
    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
  jaco.vanzyl@kaapagri.co.za
    host mail.kaapagri.co.za [41.149.201.74]
    SMTP error from remote mail server after RCPT TO:<jaco.vanzyl@kaapagri.co.za>:
    554 5.7.1 Connection Refused: Relay Server (52.221.55.32) blacklisted
  jaco.vanniekerk@eon.co.za
    host eon-co-za.mail.protection.outlook.com [104.47.6.36]
    SMTP error from remote mail server after RCPT TO:<jaco.vanniekerk@eon.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR02FT029.eop-EUR02.prod.protection.outlook.com]
  jacob@emm.evaluations.co.za
    all hosts for 'emm.evaluations.co.za' have been failing for a long time (and retry time not reached)
  Jaco.vanZyl@treasury.gov.za
    host treasury-gov-za.mail.protection.outlook.com [104.47.9.36]
    SMTP error from remote mail server after RCPT TO:<Jaco.vanZyl@treasury.gov.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR03FT010.eop-EUR03.prod.protection.outlook.com]
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