My domain samadrubber.com mails are rejected by hotmail

Dear Sir,

AOA!

My client is sending mails to his customers from samadrubber.com mail id but his mails are being rejected by the hotmail. Kindly whitelist this account. I can send you return message as well and please do response as quickly as possible.


-----Original Message-----
From: Mail Delivery System [mailto:Mailer-Daemon@weblin002.b2bhosting.net]
Sent: Thursday, March 14, 2013 4:40 PM
To: waqar.ulhaq@samadrubber.com
Subject: Mail delivery failed: returning message 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. The following address(es) failed:

beeli100@hotmail.com
SMTP error from remote mail server after MAIL
FROM:<waqar.ulhaq@samadrubber.com> SIZE=46070:
host mx1.hotmail.com [65.55.37.72]: 550 SC-001 (COL0-MC1-F19)
Unfortunately, messages from 184.107.50.225 weren't sent. Please contact
your Internet service provider since part of their network is on our block
list. You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors.

------ This is a copy of the message, including all the headers. ------

Return-path: <waqar.ulhaq@samadrubber.com>
Received: from [113.203.231.209] (port=17008 helo=waqar)
by weblin002.b2bhosting.net with esmtp (Exim 4.80)
(envelope-from <waqar.ulhaq@samadrubber.com>)
id 1UG6VR-0005Cf-2X
for beeli100@hotmail.com; Thu, 14 Mar 2013 16:39:38 +0500
From: "Waqar ul Haq" <waqar.ulhaq@samadrubber.com>
To: "'Nabeela Sami'" <beeli100@hotmail.com>
Subject: Sami Chachu ticket
Date: Thu, 14 Mar 2013 16:39:34 +0500
Message-ID: <C68EE6ECF261421AA75E768925CED20F@waqar>
MIME-Version: 1.0
Content-Type:
application/vnd.openxmlformats-officedocument.wordprocessingml.document;
name="EK E-Ticket.docx"
Content-Transfer-Encoding: base64
Content-Dis
filename="EK E-Ticket.docx"
X-Mailer: Microsoft Office Outlook 11
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157
Thread-Index: Ac4gqJjZ7XZmdSdeQ4yyp8E9nqSGhA==

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