please let me know what is going on and how to fix it

please let me know what is going on and how to fix it

Reporting-MTA: dns; mx.zohomail.com
Arrival-Date: Fri, 18 Nov 2022 13:09:13 -0800

Original-Recipient: rfc822; censored
Final-Recipient: rfc822; censored
Status: 550
Action: failed
Last-Attempt-Date: 18 Nov 2022 21:09:59 GMT
Diagnostic-Code: "JunkMail rejected - sender4-op-o19.zoho.com [136.143.188.19]:17963 is in