[Fiware-lab-help] Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host flanders0006.correio.biz.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<penhacenter2 at ig.com.br>: host mx1.ig.correio.biz[177.153.23.241] said: 554
    5.7.1 Spam message rejected (in reply to end of DATA command)
-------------- next part --------------
An embedded message was scrubbed...
From: <fiware-lab-help at lists.fiware.org>
Subject: You have an outstanding payment.
Date: 14 Jul 2023 14:40:41 +0000
Size: 5645
URL: <https://lists.fiware.org/private/fiware-lab-help/attachments/20230714/eab4431f/attachment.mht>