Email bounce back

Email bounce back

I get this when I try to send a email to one of my clients.

From: mailer-daemon@mail.zoho.com [mailto:mailer-daemon@mail.zoho.com]

Sent: Thursday, December 17, 2015 10:20 AM

To: production@gulfscan.com

Subject: Undelivered Mail Returned to Sender

 

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.

 

Sandeep.Nagar@sic-kwt.com Invalid Address, ERROR_CODE :554, ERROR_CODE :5.7.1 Service unavailable; Client host [74.201.84.154] blocked using dnsbl.sorbs.net; Currently Sending Spam See: http://www.sorbs.net/lookup.shtml?74.201.84.154

Michelle.Dsouza@sic-kwt.com Invalid Address, ERROR_CODE :554, ERROR_CODE :5.7.1 Service unavailable; Client host [74.201.84.154] blocked using dnsbl.sorbs.net; Currently Sending Spam See: http://www.sorbs.net/lookup.shtml?74.201.84.154

Reshma@sic-kwt.com Invalid Address, ERROR_CODE :554, ERROR_CODE :5.7.1 Service unavailable; Client host [74.201.84.154] blocked using dnsbl.sorbs.net; Currently Sending Spam See: http://www.sorbs.net/lookup.shtml?74.201.84.154

 

 

 Received:from VanesaPC (86.98.1.164 [86.98.1.164]) by mx.zohomail.com

     with SMTPS id 1450333171398675.918193434121; Wed, 16 Dec 2015 22:19:31 -0800 (PST)  Message-ID:<000c01d13892$d1ba4040$752ec0c0$@com>

 Date:Thu, 17 Dec 2015 10:18:54 +0400

 From:"Vanesa Serrano" <production@gulfscan.com>  To:"'Sandeep Nagar'" <Sandeep.Nagar@sic-kwt.com>,

     "'Satish'" <satish@gulfscan.com>

 Cc:"'Michelle Dsouza'" <Michelle.Dsouza@sic-kwt.com>,

     "'Reshma'" <Reshma@sic-kwt.com>

 Subject:FW: Dispatch - Shuaiba

 Content-Type:multipart/mixed;

     boundary="----=_NextPart_000_000D_01D138B4.58CBE040"