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  hothacr@iafrica.com
    host nav-gateway.mweb.co.za [196.35.198.130]
    SMTP error from remote mail server after RCPT TO:<hothacr@iafrica.com>:
    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
  hotgal_eno94@hotmail.com
    host hotmail-com.olc.protection.outlook.com [104.47.70.33]
    SMTP error from remote mail server after RCPT TO:<hotgal_eno94@hotmail.com>:
    550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302).