Hi,
I've trying to send mail from Zoho Mail panel also from my domain also, But couldn't whenever I tried this error message appeare in the mail box. Anyone know how to resolve this issuse. Thanks in advance.

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.

s----t@gmail.com, ERROR CODE :554 - 5.2.1 Too many failures for the recipient



Reporting-MTA: dns; mx.zohomail.com
Arrival-Date: Sun, 22 May 2022 13:57:11 +0600

Original-Recipient: rfc822; s----t@gmail.com
Final-Recipient: rfc822; s----t@gmail.com
Status: 554
Action: failed
Last-Attempt-Date: 22 May 2022 07:57:15 GMT
Diagnostic-Code: 5.2.1 Too many failures for the recipient


Received:from mail.zoho.com by mx.zohomail.com
    with SMTP id 1653206231890319.5130505623631; Sun, 22 May 2022 00:57:11 -0700 (PDT)
Message-ID:<180eac52b3d.c2eae6d8366621.6167497910513427139@companydomain.com>
Date:Sun, 22 May 2022 13:57:11 +0600
From:Company Domain <no_reply@companydomain.com>
To:"sagar ult" <s---t@gmail.com>
Subject:Re: test mail received
Content-Type:multipart/alternative;
    boundary="----=_Part_1201381_1170135482.1653206231869"
User-Agent:Zoho Mail