Email sent through phpmailer does not show actual IP address

I have some websites which have different IP Addresses on the server. But when an email is sent using phpmailer it does not mention the IP Address of this website but shows the host name of the server in the header.

is there a way where all emails from a particular website should show only its dedicated IP Address in the header?

it also shows the server hostname as the original domain.

Thanks in advance.

here is the header
Microsoft Mail Internet Headers Version 2.0
X-Brightmail-Tracker: AAAAAQAAA+k=
thread-index: Acaxh7M81Ed7K7szQOeIE4ztpGm0Ew==
X-Language-Identified: TRUE
Received: from ([]) by with Microsoft SMTPSVC(6.0.3790.1830); Thu, 27 Jul 2006 18:19:40 +0400
Received: from nobody by with local (Exim 4.52) id 1G66i8-00073d-Di for [email protected]; Thu, 27 Jul 2006 10:19:36 -0400
Content-Transfer-Encoding: 7bit
To: <[email protected]>
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2663
Content-Class: urn:content-classes:message
Subject: Thank you very much for your registration. 
Importance: normal
Priority: normal
Received: from phpmailer ([])  by with HTTP (PHPMailer); Thu, 27 Jul 2006 10:19:36 -0400
Date: Thu, 27 Jul 2006 10:19:36 -0400
From: "Example admin" <[email protected]>
Message-ID: <e19b000918158aad[email protected]>
X-Priority: 3
X-Mailer: PHPMailer [version 1.71]
MIME-Version: 1.0
Content-Type: multipart/alternative;
Sender: "Nobody" <[email protected]>
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname -
X-AntiAbuse: Original Domain -
X-AntiAbuse: Originator/Caller UID/GID - [99 99] / [47 12]
X-AntiAbuse: Sender Address Domain -
Return-Path: <[email protected]>