Error, ERROR_CODE :550, ERROR_CODE :5.7.1 [74.201.84.155 12] Our system has detected that this message is

Error, ERROR_CODE :550, ERROR_CODE :5.7.1 [74.201.84.155 12] Our system has detected that this message is

Hi, it seems Zoho has a problem with my email account. First, the problem was fixed, because they blocked my account because i had 10 bounces. Then i unblocked, and it seems to work well again, but it didnt. I just sent 5 more emails, and then, the problem started again. I went to same page where they said i was blocked, and it said that my account is not blocked. So I dont know which could be the problem..

Please I need to send emails as soon as possible.


This is the mail i got:

This message was created automatically by mail delivery software. 
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. 

xxxxx @gmail.com  Error, ERROR_CODE :550, ERROR_CODE :5.7.1 [74.201.84.155 12] Our system has detected that this message is 


Received:from mail.zoho.com by mx.zohomail.com 
    with SMTP id 1421970821046645.6847101466886; Thu, 22 Jan 2015 15:53:41 -0800 (PST) 
Message-ID:<14b1410cf85.f06 b7901114574.528828751880596280@xxxx.com
Date:Thu, 22 Jan 2015 19:23:40 -0430 
From:xxxx