Mail Delivery Status Notification (Delay) - To Zoho Support Email

Mail Delivery Status Notification (Delay) - To Zoho Support Email

Hi there,

I've received the following delay notification when emailing most email addresses including zoho support email:

This message was created automatically by mail delivery system.

THIS IS A WARNING MESSAGE ONLY.

YOU DO NOT NEED TO RESEND YOUR MESSAGE.

The original message was received at Tue, 22 Nov 2022 07:02:46 +1100
from david@simpleandengaging.com [david@simpleandengaging.com]

----- The following addresses had fatal errors -----
[support@zohomail.com]

Message will be retried for 4 more day(s)


Reporting-MTA: dns; mx.zohomail.com.au
Arrival-Date: Mon, 21 Nov 2022 13:16:48 -0600

Original-Recipient: rfc822; support@zohomail.com
Final-Recipient: rfc822; support@zohomail.com
Status: 421
Action: failed
Last-Attempt-Date: 21 Nov 2022 20:02:46 GMT
Diagnostic-Code: Host not reachable.


Received:from mail.zoho.com.au by mx.zoho.com.au
    with SMTP id 1669058208794744.1204592573811; Tue, 22 Nov 2022 06:16:48 +1100 (AEDT)
Message-ID:<1849b9f2406.a9ec15a8698.3252577330242690455@simpleandengaging.com>
Date:Mon, 21 Nov 2022 13:16:48 -0600
From:David Watters <david@simpleandengaging.com>
To:"support" <support@zohomail.com>
Subject:Re: Mail Delivery Status Notification (Delay)
Content-Type:multipart/alternative;
    boundary="----=_Part_37217_1340914188.1669058208775"
User-Agent:Zoho Mail

Any idea how to fix this? I've had issues sending emails to clients that I've been in contact with for around 12 months

Have tried to email support and not got a response yet (not even an auto response)

Thanks
David