Zoho hosted Domain and Emails not working

Zoho hosted Domain and Emails not working

Dear Team,

There is anissue with my Inboxes as none of them are working.

Original-Recipient: rfc822; vignesh@redknox.ae
Final-Recipient: rfc822; vignesh@redknox.ae
Status: 421
Action: failed
Last-Attempt-Date: 17 Nov 2023 13:54:25 GMT
Diagnostic-Code: Host not reachable.

Please provide solutions for the same.

Email id: 

Below is the messages received on change of the server names.

This is to inform you that Name Server(s) for redknox.ae has been changed.

Changes made:
Name Servers Before:
NS1: ns1.etisalatdomains.ae
NS2: ns2.etisalatdomains.ae
NS3: ns3.etisalatdomains.ae
NS4: ns4.etisalatdomains.ae

Name Servers After:
NS1: dns1.p04.nsone.net
NS2: dns2.p04.nsone.net
NS3: dns3.p04.nsone.net
NS4: dns4.p04.nsone.net

Please help us with issue as our Business is getting affected as no mails are working. 

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