Hide my IP address from gmail headers when sending mails via python SMTP library?

I am currently using python SMTP library to send e-mails to certain clients. I am using the smtp.gmail.com:587 server. I noticed that in the original headers of any received e-mails sent by this code, the IP address of my own server which sent the e-mail appears. How can I hide this information ? Thanks in advance. ``` server = smtplib.SMTP('smtp.gmail.com', 587) #server.set_debuglevel(1) server.ehlo() server.starttls() server.login("my gmail account", "gmail account passwd") server.sendmail(source, [destination], message) server.quit() ``` Headers received by such an email. ``` Delivered-To: XXXXXXXXXXX@XXXXXXXXX.com Received: by 10.52.117.49 with SMTP id kb17csp32285vdb; Thu, 5 Dec 2013 09:23:19 -0800 (PST) X-Received: by 10.66.235.106 with SMTP id ul10mr89187198pac.19.1386264198756; Thu, 05 Dec 2013 09:23:18 -0800 (PST) Return-Path: <noreply@XXXXXXX.com> Received: from mail-pd0-f172.google.com (mail-pd0-f172.google.com [209.85.192.172]) by mx.google.com with ESMTPS id v7si58653928pbi.128.2013.12.05.09.23.18 for <XXXXXXXXXXXX@XXXXXXX.com> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 05 Dec 2013 09:23:18 -0800 (PST) Received-SPF: neutral (google.com: 209.85.192.172 is neither permitted nor denied by best guess record for domain of noreply@XXXXXXXXX.com) client-ip=209.85.192.172; Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.192.172 is neither permitted nor denied by best guess record for domain of noreply@XXXXXXX.com) smtp.mail=noreply@XXXXXXXXXXXX.com Received: by mail-pd0-f172.google.com with SMTP id g10so25045148pdj.31 for <XXXXXXXXXXX@XXXXXXXXX.com>; Thu, 05 Dec 2013 09:23:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:to:cc:subject; bh=q/9aftTaFh6ryLKbZzIDy6Hfz1R4BSYhG2tvHwxCBLU=; b=C7Ke+Q6gVau5OxK9BZTuFx2ny0lO35WRjgsWoGyjlbQ0hlTRyQbD18ALNnlbdowUzR JHO8Smvr2EpgTFQ6h9gsLx6V8fmrfpFNWyQWOFgs6h46d9b1TTW7LWQZfVOIfWD6CfgG 7hUTl7/YFcLbuUQpcOMUDJ/LK7AN4Yp6J6n2nzA6m46QOKKSP7t62OCUTlCd9JoLg4D3 zPkF7oFptlyHWwpZCN5FozbqjuLx6rQfaZpKKMd2q4OXsPd0/CwtOOpBaf1BNVF7HOnD VJR8YrpFI/gpUOfJJz9R5l8DXE8KAkMCW+10OAupdTzwP9gtSk2coHBA+N05Q2ezzDuK Np3w== X-Gm-Message-State: ALoCoQn41Nai7QBm96wqd4aNJPrBfx2AlYr+PlZzQ wAxujazDPTnRQG80l4v/Oy35W/3ZIz6jCIa X-Received: by 10.68.66.103 with SMTP id e7mr53292154pbt.120.1386264197850; Thu, 05 Dec 2013 09:23:17 -0800 (PST) Return-Path: <noreply@XXXXXXXXX.com> Received: from [127.0.0.1] ([xx.xxx.xxx.xx]) by mx.google.com with ESMTPSA id er3sm145968195pbb.40.2013.12.05.09.23.15 for <XXXXXXXXXXX@XXXXXXXXXx.com> (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 05 Dec 2013 09:23:16 -0800 (PST) Message-ID: <52a0b684.a363440a.5bbc.ffff8e2e@mx.google.com> Date: Thu, 05 Dec 2013 09:23:16 -0800 (PST) From: noreply@XXXXXXXXXX.com To: XXXXXXXX@XXXXXXXXX.com Cc: Subject: FTP Credentials Your FTP account credentials are: User Name = xxxxxxxxxxx Password = xxxxxx ```