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  adnaanm@nashuamobile.com
    host nashuamobile.com [197.96.172.37]
    SMTP error from remote mail server after RCPT TO:<adnaanm@nashuamobile.com>:
    550-The mail server could not deliver mail to adnaanm@nashuamobile.com.  The
    550-account or domain may not exist, they may be blacklisted, or missing the
    550 proper dns entries.
  adolphm@sassa.gov.za
    host zalj.e-purifier.com [41.168.2.5]
    SMTP error from remote mail server after RCPT TO:<adolphm@sassa.gov.za>:
    554 5.7.1 <adolphm@sassa.gov.za>: Recipient address rejected:
    Access denied
  adonis@nova.edu
    host nova-edu.mail.protection.outlook.com [104.47.58.110]
    SMTP error from remote mail server after RCPT TO:<adonis@nova.edu>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DM6NAM10FT025.eop-nam10.prod.protection.outlook.com]
  adolphw@fshealth.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<adolphw@fshealth.gov.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
  adolf.stassen@dha.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<adolf.stassen@dha.gov.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
  adol@tshwane.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<adol@tshwane.gov.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
  Admo4@dacst3.wcape.gov.za
    host securemail-mx1.synaq.com [196.35.198.158]
    SMTP error from remote mail server after RCPT TO:<Admo4@dacst3.wcape.gov.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
  admkemp@lsaker.ih.co.za
    host lsaker-ih-co-za.mail.protection.outlook.com [104.47.5.36]
    SMTP error from remote mail server after RCPT TO:<admkemp@lsaker.ih.co.za>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [HE1EUR02FT030.eop-EUR02.prod.protection.outlook.com]