Incoming mail blocked

Incoming mail blocked

Incoming mail for 1 of the email addresses is being blocked.

Following message received by a sender.

The response from the remote server was:

554 5.2.3 MailPolicy violation Error delivering to mailboxes


Final-Recipient: rfc822;  scsharma@trailblazer.in
Action: failed
Status: 5.2.3
Remote-MTA: dns;  mx.zoho.com . (8.40.222.121, the server for the domain  trailblazer.in .)
Diagnostic-Code: smtp; 554 5.2.3 MailPolicy violation Error delivering to mailboxes
Last-Attempt-Date: Thu, 21 Sep 2017 00:23:06 -0700 (PDT)