Hi,

I tried to send a email to a certain email address and got the following error:

INVALID_ADDRESS, ERROR_CODE :550, ERROR_CODE :5.5.1 Server IP 135.84.80.218 listed as abusive. See 
             http://spamauditor.org/best-practices/ip-reputation/  for more information.. 
            Protection provided by MagicSpam 2.1-9.1  http://www.magicspam.com  

It seems  that the zoho email server IP  135.84.80.218 was blacklisted.

My question:

1. how to solve this problem?

2. Currently I am a free user. If I upgrade my account, shall I be transfered have the same problem?