Delivery to the following recipient failed permanently:

Delivery to the following recipient failed permanently:

Does anyone know how I solve this problem? I did the blocking of the 
box and when unblocking is no longer sending or receiving messages
Delivery to the following recipient failed permanently:

      contato@shoppingdastelas.com.br

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain shoppingdastelas.com.br by mx.zoho.com. [165.254.168.50].

The error that the other server returned was:
552 5.1.1 < contato@shoppingdastelas.com.br> Mailbox delivery failure policy error


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From: Cristiano Chagas < cristiano.chagas@th7.com.br>
Date: Thu, 22 Dec 2016 10:10:55 -0300
Message-ID: < CADLxZPzVeXekh6ohHFYOst55+SKKLifGyY6pCF1EqSv1bhRGaA@mail.gmail.com>
Subject: teste de contato
To: contato@shoppingdastelas.com.br,
        cristiano chagas < cristiano.chagas@shoppingdastelas.com.br>
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