qmail - mail sent via phpmail showing headers on Outlook

[r00ty24]

mail sent (via online form using phpmailer) to outlook showing headers like:

---
From: personname <techtest@domain1.com>
Message-ID: <d3ba79a292fcd371f36b3c04d0b4c165@www.domain2.com>
X-Priority: 3
X-Mailer: PHPMailer (phpmailer.sourceforge.net) [version 2.0.3]
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="b1_d3ba79a292fcd371f36b3c04d0b4c165"

--b1_d3ba79a292fcd371f36b3c04d0b4c165
Content-Type: text/plain; charset = "UTF-8"
Content-Transfer-Encoding: 8bit

test Name: dsd, Address: sdsds, Phone: 23232323


--b1_d3ba79a292fcd371f36b3c04d0b4c165
Content-Type: text/html; charset = "UTF-8"
Content-Transfer-Encoding: 8bit

test Name: dsd, Address: sdsds, Phone: 23232323



--b1_d3ba79a292fcd371f36b3c04d0b4c165--

---

but when checked on webmail, its correct.. showing:

test Name: dsd, Address: sdsds, Phone: 23232323

Outlook and other email client showing the entire email headers on the message..

Which setting needs to be adjusted to get it working with email client?

Thanks.