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  23j@hermanus.co.za
    host prx-mail-node01.host-m.co.za [102.38.60.64]
    SMTP error from remote mail server after RCPT TO:<23j@hermanus.co.za>:
    550 5.7.1 Service unavailable; client [13.251.245.207] blocked using b.barracudacentral.org
  24subs@tcs.co.za
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    SMTP error from remote mail server after RCPT TO:<24subs@tcs.co.za>:
    550-Callout verification failed:
    550-550 5.1.1 <24subs@tcs.co.za>: Recipient address rejected:
    550 User unknown in virtual mailbox table
  236963443366024@groups.facebook.com
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    SMTP error from remote mail server after RCPT TO:<236963443366024@groups.facebook.com>:
    550 5.1.1 RCP-P1 Recipient address does not exist https://www.facebook.com/postmaster/response_codes?ip=13.251.245.207#RCP-P1
  236694750117279@groups.facebook.com
    host smtpin.vvv.facebook.com [69.171.251.251]
    SMTP error from remote mail server after RCPT TO:<236694750117279@groups.facebook.com>:
    550 5.1.1 RCP-P1 Recipient address does not exist https://www.facebook.com/postmaster/response_codes?ip=13.251.245.207#RCP-P1
  232qi78000zg46r05yd2s0019lzhuxeut000zg46r05yd000000cc9r351pi1i@reply.facebook.com
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    SMTP error from remote mail server after end of data:
    554 5.7.1 POL-P6 Message refused https://www.facebook.com/postmaster/response_codes?ip=13.251.245.207#POL-P6
  22gfj9c000zg46r05yd2s0019chn19dh5000zg46r05yd0000091ed9nr1pg1i@reply.facebook.com
    host smtpin.vvv.facebook.com [69.171.251.251]
    SMTP error from remote mail server after end of data:
    554 5.7.1 POL-P6 Message refused https://www.facebook.com/postmaster/response_codes?ip=13.251.245.207#POL-P6
  25cde062d1854ba6b677efa5a2f6b32a@dbchoir.com
    host dbchoir-com.mail.protection.outlook.com [104.47.4.36]
    SMTP error from remote mail server after RCPT TO:<25cde062d1854ba6b677efa5a2f6b32a@dbchoir.com>:
    550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [AM5EUR02FT016.eop-EUR02.prod.protection.outlook.com]
  245@gmail.com
    host gmail-smtp-in.l.google.com [142.251.10.27]
    SMTP error from remote mail server after RCPT TO:<245@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 b14si22383932pfv.93 - gsmtp