Subject: Mail delivery failed: returning message to sender
From: Mail Delivery System <[email-masked]>
To: [email-masked]
Date: Fri, 15 Dec 2023 23:55:50 +0330

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  [email-masked]
    host teodoroceanic-com01e.mail.protection.outlook.com [104.47.19.110]
    SMTP error from remote mail server after RCPT TO:<[email-masked]>:
    550 5.7.1 Service unavailable, Client host [159.69.236.107] blocked using Spamhaus. To request removal from this list see https://www.spamhaus.org/query/ip/159.69.236.107 AS(1440) [JN2ZAF01FT016.eop-zaf01.prod.protection.outlook.com 2023-12-15T20:25:50.397Z 08DBFD9632D256DC]

Subject: Testing
From: [email-masked]
To: [email-masked]
Date: Fri, 15 Dec 2023 23:55:44 +0330