[RFCI-Discuss] Balcklist , Error Message

[Mohammad Fattahian]

Hi folks,

Due to an unknown error some of the domains are rejecting our outgoing emial, with the following error message.

554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.
 

554 Sender address x.x.x.x blacklisted. Access denied. See the reputation of IP from http://www.senderbase.org

I've checked in www.senderbase.org and I found that my Email Reputation Score is Poor.

Any idea to solve the problem?

Thanks.
Mohammad.