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  kp@ovaloffice.co.za
    host mail.ovaloffice.co.za [41.203.16.31]
    SMTP error from remote mail server after RCPT TO:<kp@ovaloffice.co.za>:
    550 Unroutable address
  kp.koh@isfpk.com.my
    host cluster1.us.messagelabs.com [67.219.250.204]
    SMTP error from remote mail server after end of data:
    553-Message filtered. Refer to the Troubleshooting page at
    553-https://knowledge.broadcom.com/external/article?legacyId
    553 =TECH246726 for more information. (#5.7.1)
  kowiemedicines@mweb.co.za
    host securemail-mx3.synaq.com [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<kowiemedicines@mweb.co.za>:
    550-rejected because 13.251.197.89 is in a black list at combined.abusix.dnsbl
    550 https://lookup.abusix.com/search?q=13.251.197.89
  kowie@glslaw.co.za
    host glslaw-co-za.mail.protection.outlook.com [104.47.19.110]
    SMTP error from remote mail server after RCPT TO:<kowie@glslaw.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [JN2ZAF01FT009.eop-zaf01.prod.protection.outlook.com]
  kowie.theron@mariestopes.org.za
    host mariestopes-org-za.mail.protection.outlook.com [104.47.9.36]
    SMTP error from remote mail server after RCPT TO:<kowie.theron@mariestopes.org.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR03FT015.eop-EUR03.prod.protection.outlook.com]