Error sending emails...

Error sending emails...

Hello,
We have a form at https://polloperez.com/quejas-y-sugerencias/ and we have configured the email micorreo@polloperez.com to receive the messages sent through the form.
However, when sending the data through the form, although it indicates that it was sent, it does not arrive at the previously indicated email address. Instead, it is sent to the local email address of the server with the following message.
Can you help us please?
Thank you in advance, best regards.

-----------
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:

    host mx.zoho.com [136.143.191.44]
    SMTP error from remote mail server after end of data:
    554 5.2.3 MailPolicy violation Error delivering to mailboxes
Reporting-MTA: dns; whitelies.serverparlor.net

Action: failed
Final-Recipient: rfc822;micorreo@polloperez.com
Status: 5.0.0
Remote-MTA: dns; mx.zoho.com
Diagnostic-Code: smtp; 554 5.2.3 MailPolicy violation Error delivering to mailboxes



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