Mail delivery failed: returning message to sender

[Singnet Mail Delivery System]

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:

  jellytot@stmichaels.fs.school.za
    host relay2.ncc.co.za [102.132.9.27]
    SMTP error from remote mail server after RCPT TO:<jellytot@stmichaels.fs.school.za>:
    554 5.7.1 E-mail firewall rules determined that 13.251.162.251 is not allowed to send e-mail to (*)jellytot@stmichaels.fs.school.za.
  jemaine.stevens@gmail.com
    host gmail-smtp-in.l.google.com [172.217.194.26]
    SMTP error from remote mail server after RCPT TO:<jemaine.stevens@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 k9si9112081pff.209 - gsmtp
  jem@manikingames.com
    all hosts for 'manikingames.com' have been failing for a long time (and retry time not reached)
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From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 14:57:18 +0800
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