I have recently registered on zoho of domain fidelpump.com. I have created an account of user. While i can't receive eail and i am getting this error.

Delivery to the following recipient failed permanently:

      rajesh@fidelpump.com

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain  fidelpump.com  by  fidelpump.com . [103.21.58.130].

The error that the other server returned was:
550-Please turn on SMTP Authentication in your mail client.
550-mail-qk0-f176.google.com  [209.85.220.176]:34868 is not permitted to relay
550 through this server without authentication.