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  jairoa@css.pwv.gov.za
    host securemail-mx2.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<jairoa@css.pwv.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
  jaj@johor.gov.my
    host zuhal.johor.gov.my [210.19.13.220]
    SMTP error from remote mail server after RCPT TO:<jaj@johor.gov.my>:
    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
  jainodien.mia@porter.co.za
    all hosts for 'porter.co.za' have been failing for a long time (and retry time not reached)