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:

  JenniM@Nedbank.co.za
    host mxgw06.nedbank.co.za [168.142.192.40]
    SMTP error from remote mail server after DATA:
    550 #5.7.1 Your access to submit messages to this e-mail system has been rejected.
  jennih@pmb.ssi.co.za
    host ch1ssibme1.basel.usf.ihost.com [129.35.232.211]
    SMTP error from remote mail server after RCPT TO:<jennih@pmb.ssi.co.za>:
    550 5.7.1 <jennih@pmb.ssi.co.za>... Relaying denied
-------------- next part --------------
An embedded message was scrubbed...
From: "BEN JOHNSON" <mauve-patches@sourceware.org>
Subject: WARM REGARDS
Date: Mon, 29 Nov 2021 14:57:31 +0800
Size: 1723
URL: <https://sourceware.org/pipermail/mauve-patches/attachments/20211129/9ed780d5/attachment-0001.eml>