Email not receiving

Email not receiving

Hi Zoho Support team,
I just created my business email here by creating zoho DNL entry at Godaddy. I'm able to send an email to others from zoho, but when they reply, its not receiving. Here is the error message people are getting when they tried to send an email:

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Delivery to the following recipient failed permanently:

      ravi@smartrin.com

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain  smartrin.com  by  smtp.secureserver.net . [68.178.213.37].

The error that the other server returned was:
550 5.1.1 < ravi@smartrin.com > Recipient not found.  < http://x.co/irbounce >
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Best,
Ravi