550 Requested action not taken: mailbox unavailable or not local.

550 Requested action not taken: mailbox unavailable or not local.

Hi, I have created sales@rapid3d.co.in mail in zoho and it was working fine until now i got this below error.

Mail bounces when people try to send mail to sales@rapid3d.co.in, but when i sent a mail to the same using naresh@rapid3d.co.in i received the mail.

And when i send a mail from sales@rapid3d.co.in mail is received at the other end.

I have attached the response of the error for your perusal, kindly help 


The response was:

550 Requested action not taken: mailbox unavailable or not local.


Final-Recipient: rfc822; sales@rapid3d.co.in
Action: failed
Status: 5.0.0
Remote-MTA: dns; mail.rapid3d.co.in. (162.222.225.73, the server for the
 domain rapid3d.co.in.)
Diagnostic-Code: smtp; 550 Requested action not taken: mailbox unavailable or not local.
Last-Attempt-Date: Wed, 10 Jan 2018 22:53:53 -0800 (PST)

Regards,
Naresh