Blacklist Zoho 74.201.84.163

Hello,

I read the previous topics and see that you have problems with zoho ip adress in blacklist. I get this message yesterday.

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.

I send mail to important client and get this message:

Invalid Address, ERROR_CODE :550, ERROR_CODE :Rejected message because 74.201.84.163 is in a black list at dnsbl.sorbs.net

Please can you solve this, or send instruction how to solve this problem. Can you fix it soon? It is urgent!

Best regards,

Mijo