Hi
a mailing list was created with MM2.1 by a another person and I am the list administrator. This list was created empty
so I started inviting people to join.
However, when I started to send trial messages to the list I received this error message:

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 protected]
host llistes.ruderal.cat [159.69.3.30] SMTP error from remote mail server after RCPT TO:<[email protected]>:
    550 5.1.1  <[email protected]>:Recipient address rejected: User 
unknown in virtual mailbox table


Reporting-MTA: dns; chi103.greengeeks.net Action: failed
Final-Recipient:  rfc822;[email protected]
Status: 5.0.0 Remote-MTA: dns; llistes.ruderal.cat Diagnostic-Code: smtp; 550 5.1.1 <[email protected]>:Recipient address rejected: User unknown in virtual mailbox table

I don't understand why, especially because the unknown user's address is my address which is part of the users mailing list. Can anyone help understand why this happens and how to fix it? (right now I don't have access to the person who initially created the list)
Best regards
--
--------------------------------------------------------------------------------------
Antonio Scotti
Formador, Consultor y Diseñador de Permacultura
Diploma en Diseño Aplicado de Permacultura
Tutor en la Academia de Permacultura Íbera <3D"https://academiapermaculturaibera.org/";> Facilitador curso GEDS (Gaia Education Design for Sustainability) <3D"https://www.gaiaeducation.org/elearning-programmes/design-for-sustainability-es/";> As. Cambium Permacultura en Formación <3D"https://permacultura-es.org/index.php?option=3Dcom_content&vi=>
FB <3D"https://www.facebook.com/antonio.scotti.129/";>
Webmaster de Permacultura-es.org <https://www.permacultura-es.org>


--
El software de antivirus Avast ha analizado este correo electrónico en busca de 
virus.
https://www.avast.com/antivirus
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