i can send mail from zoho to test gmail.. But cant receive



Delivery to the following recipient failed permanently:

      mail@dipanjanm.in

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain  dipanjanm.in  by  dipanjanm.in . [208.91.199.152].

The error that the other server returned was:
550-Please turn on SMTP Authentication in your mail client.
550-mail-vk0-f45.google.com  [209.85.213.45]:34190 is not permitted to relay
550 through this server without authentication.