Mail delivery failed: returning message to sender

[Singnet Mail Delivery System]

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:

  emashton@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<emashton@mweb.co.za>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  emas@teckguan.com
    host d254673b.ess.barracudanetworks.com [209.222.82.255]
    SMTP error from remote mail server after end of data:
    550 Service unavailable; Client host [omr17.orchid.atmailcloud.com] blocked using Barracuda Reputation; http://www.barracudanetworks.com/reputation/?r=1&ip=13.251.245.207 (emas@teckguan.com:blocked)
  emartin@ncpg.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<emartin@ncpg.gov.za>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  EmanuelN2@tshwane.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<EmanuelN2@tshwane.gov.za>:
    550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.245.207
  emanuel.ramathuba@gmail.com
    host gmail-smtp-in.l.google.com [142.251.12.27]
    SMTP error from remote mail server after RCPT TO:<emanuel.ramathuba@gmail.com>:
    550-5.1.1 The email account that you tried to reach does not exist. Please try
    550-5.1.1 double-checking the recipient's email address for typos or
    550-5.1.1 unnecessary spaces. Learn more at
    550 5.1.1  https://support.google.com/mail/?p=NoSuchUser kk16si21913001pjb.29 - gsmtp
  EMANUEL.BRAVIN@agrana.com
    host agrana-com.mail.protection.outlook.com [104.47.5.36]
    SMTP error from remote mail server after RCPT TO:<EMANUEL.BRAVIN@agrana.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [HE1EUR02FT032.eop-EUR02.prod.protection.outlook.com]
  emannuel@nzg.ac.za
    host nzg-ac-za.mail.protection.outlook.com [104.47.2.36]
    SMTP error from remote mail server after RCPT TO:<emannuel@nzg.ac.za>:
    550 5.7.51 TenantInboundAttribution; There is a partner connector configured that matched the message's recipient domain. The connector had either the RestrictDomainsToIPAddresses or RestrictDomainsToCertificate set [DB5EUR01FT003.eop-EUR01.prod.protection.outlook.com]
  emanamela@ovi.com
    all hosts for 'ovi.com' have been failing for a long time (and retry time not reached)
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Date: Mon, 29 Nov 2021 14:27:52 +0800
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