Hello,

I have a problem when I try to send an email to one of my clients:

INVALID_ADDRESS, ERROR_CODE :550, ERROR_CODE :"JunkMail rejected - sender-of-o53.zoho.com [135.84.80.218]:21785 is in an
			RBL: SORBS - Currently Sending Spam See:
			http://www.sorbs.net/lookup.shtml?135.84.80.218"
  

   

  
  

   I 
   suppose that SORB added the Zoho Server IP in an SpamList.
   

  
  

   

  
  

   ¿Can you help me with that, please?
   

  
  

   Thank you.