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A message that you sent could not be delivered to one or more of its
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  dengran@sf-express.com
    host eMX2.sf-express.com [123.58.60.141]
    SMTP error from remote mail server after RCPT TO:<dengran@sf-express.com>:
    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
  deng@forma.cn
    host hmx146.cn4e.com [47.52.222.213]
    SMTP error from remote mail server after RCPT TO:<deng@forma.cn>:
    550 RC:NE <deng@forma.cn>:The email account does not exist
  denel8.businessandexe@galileosa.co.za
    host mail-gw2.pccc.co.za [3.64.82.161]
    SMTP error from remote mail server after RCPT TO:<denel8.businessandexe@galileosa.co.za>:
    550 5.1.1 <denel8.businessandexe@galileosa.co.za>:
    Recipient address rejected: undeliverable address:
    host 196.22.216.144[196.22.216.144] said: 550 5.1.1 <denel8.businessandexe@galileosa.co.za>:
    Recipient address rejected: User unknown in virtual mailbox table (in reply to RCPT TO command)
  DeneseP@nbl.co.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.197.201]
    SMTP error from remote mail server after RCPT TO:<DeneseP@nbl.co.za>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [FDYhyPOmNc2bA3LikyDVdA.za2]
  denby@science.uct.ac.za
    host za-smtp-inbound-2.mimecast.co.za [41.74.197.201]
    SMTP error from remote mail server after RCPT TO:<denby@science.uct.ac.za>:
    550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [FDYhyPOmNc2bA3LikyDVdA.za2]
  deneau.celine@wanadoo.fr
    host smtp-in.orange.fr [193.252.22.65]
    SMTP error from remote mail server after end of data:
    550 5.2.0 ra77mgQy74ngv Mail rejete. Mail rejected. OFR_506 [506]
  denekewa@un.org
    host unasav8.un.org [85.159.201.189]
    SMTP error from remote mail server after initial connection:
    554-unasav8.un.org
    554 Rejected
  denaidoo@cisco.com
    host alln-mx-01.cisco.com [173.37.147.230]
    SMTP error from remote mail server after DATA:
    550 Connections from omr21.orchid.atmailcloud.com (52.221.55.32) are being rejected due to a poor email reputation score. The sender should have their email support team review https://talosintelligence.com/reputation_center/lookup?search=52.221.55.32 . Once the source of the poor reputation has been fixed, the score will begin to increase and this system will automatically start accepting connections again.

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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
To: Recipients <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 14:22:33 +0800

Good Day,
 An exhaustive and meticulous search was conducted and it is in connection with this search that I'm writing to you today base on your surname which you share with a client that is now deceased. Revert back to me for more details to be given to you. 
 Sincerely,
Barr Ben Johnson