Zoho Mail not receiving mail

I got this message from gmail when i tried to send a test mail to my cqtan@taira.com.my

Can anyone please help.

The response from the remote server was:

550

Please turn on SMTP Authentication in your mail client, or login to the IMAP/POP3 server before sending your message. mail-yw0-f178.google.com [209.85.161.178]:36063 is not permitted to relay through this server without authentication.

Final-Recipient: rfc822; cqtan@taira.com.my
Action: failed
Status: 5.0.0
Remote-MTA: dns; taira.com.my . (110.4.45.173, the server for the domain taira.com.my .)
Diagnostic-Code: smtp; 550-Please turn on SMTP Authentication in your mail client, or login to the
550-IMAP/POP3 server before sending your message. mail-yw0-f178.google.com
550-[209.85.161.178]:36063 is not permitted to relay through this server
550 without authentication.
Last-Attempt-Date: Sun, 19 Mar 2017 17:20:45 -0700 (PDT)