Mail rate exceeded account not blocked

Mail rate exceeded account not blocked

I have checked my control panel for the account eventsecretary.com.au and the user is not blocked however we are still receiving the following
Final-Recipient: rfc822;  wslade64@gmail.com
Action: failed
Status: 5.4.6
Remote-MTA: dns;  smtp.zoho.com  (204.141.24.118, 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: Mon, 30 Jan 2017 12:15:27 -0800 (PST)