I am not able to send e-mail from my account: dipankar@primeinfoserv.com  

I am using gmail as interface.

I got the below message:

tatus: 5.4.6
Remote-MTA: dns;  smtp.zoho.com  (8.40.222.118, the relay for the domain.)
Diagnostic-Code: smtp; 550 5.4.6 Mail rate exceeded limit. <a href= https://mail.zoho.com/UnblockMe  target=_blank>Click here</a> to unblock
Last-Attempt-Date: Fri, 07 Apr 2017 21:52:02 -0700 (PDT)

Please let me know what to do and when the problem will resolve.

Dipankar Mitra