Error code 554

Error code 554

Hi there,

I recently sent my first email since joining Zoho mail and received the following error message. I googled and apparently, it's due to poor reputation and/or being black listed. How does that happen since that was my first email sent from this account?

I also read from another user that the same has also happened to him. Can you please confirm if this is an ongoing issue, because it's critical for my business to be able to have a working email account.

Thanks,
A Fine Sift

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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.

ERROR CODE :554 - Your access to this mail system has been rejected due to poor reputation of a domain used in message transfer

Reporting-MTA: dns; mx.zohomail.com.au
Arrival-Date: Fri, 09 Dec 2022 08:00:00 +1100

Original-Recipient: rfc822; 
Final-Recipient: rfc822; 
Status: 554
Action: failed
Last-Attempt-Date: 8 Dec 2022 21:00:24 GMT
Diagnostic-Code: Your access to this mail system has been rejected due to poor reputation of a domain used in message transfer


Received:from mail.zoho.com.au by mx.zoho.com.au
    with SMTP id 167053320014493.70913949037674; Fri, 9 Dec 2022 08:00:00 +1100 (AEDT)
Message-ID:<184f389b903.3fd7f65052699.872184144070660765@afinesift.au>
Date:Fri, 09 Dec 2022 08:00:00 +1100
From:
To:
Subject:Re: Cake order please
Content-Type:multipart/alternative;
    boundary="----=_Part_193446_1596345000.1670533200133"
User-Agent:Zoho Mail

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