title: PHP mail() email address is different from the email being sent
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/7439840/emails-showing-from-host-myserver-com-instead-of-mydomain-com">Emails showing from host.myserver.com instead of mydomain.com</a>  </p>
  </blockquote>
  
  
  
  <p>Not sure if this will make sense, but when I try to send an email from russell.harrower@mydomain.com it says sentby root@host.mydomain.com</p>
  
  <p>Is there anyway to fix this?</p>
  
  <p>Yahoo Results.</p>
  
  <pre><code>From iNcard Thu Sep 15 20:25:29 2011
  X-Apparently-To: russell.harrower@yahoo.com via 98.138.87.158; Thu, 15 Sep 2011 20:25:32 -0700
  Return-Path: &lt;icard-lifestyle-guide@incard.com.au&gt;
  Received-SPF: none (domain of incard.com.au does not designate permitted sender hosts)
  X-YMailISG: lo3RhWoWLDv_WHz3JN9HmYtpybG2PDVs8qfPdALeMm06q6Va
   7_JLFvrtF3ZMrNnWTt.LFkzfH8epmIbIXDqmvgfBfiEV5bgtYB.7u4Ct17Dx
   gXTX0gNkH7_Ad9Im0fuFYp6bB1b8N4ymRJ86dFjEsCaEEwB7Q8_5cZzMZJW9
   gZcRui_aVjfybJxiClzRlb8xgCsOsf1qYjJx5dF__GX9UcZqIhC9XOQgj8bf
   VEQKZMSuXGT8TAblfeAE0V39fQEPOOjBEMzYYMf7Mch8jjD.RlV4IOBVPZBF
   jNAthv0bCKIQICb7JBEVe03A9C33MzIYyY_DlGugFBdr9I3r19PZKutv2Lsd
   e7FkpZ6li8rd3Em5wN3blqWGP.pgtxnOAw4klakMQbxQ9MuRPcvLoVT_G1Ab
   .eLzBJnHwojtG3.nsCahq1mxq88GsG9ZeAqaN74Fn1Cs8zGKx2dIndp_8lPt
   CH_M4q5DXvjpQmCszDbICAKXJFX9VaQFsjjOMUVwJemDlGlSm.N0xUb78MX7
   WFXZyht5tGLsuJcNR8qazP1DoHPt0Z4yKNE.SGOpCdV.aqyWaU3Z84rFodob
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   ObOPKdwaDDBgGHeBR2om9uTq1nL.O3KvX946mgYMhbcBdDQAXyiW.9I2882M
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   3sIXnnIfAB6sbh7psVd9Hp.nE6bmaqQr4CubIWJanYv6.o5sxKBXVQEuHFTA
   3s0AAP3FlW8Qpsj_i2SybgmHBvFx_.a0sM2Qh6p3d0D7zQZLIwzYS0nA6wRL
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   ahCxNHg9lppRMZNvPyTFBpcj1mle32pZkWE5HQyxr_aNnz3a69RPoBnQNvi3
   W4zl_CsWcBxqxSdA15i2Kkh0HDgO6THcfq1Vwaf89buHwqFo2RnRcumB1Q7W
   vRxBG9ci..an6iKSaPIGEvTOkwIhBbn17sL62hliHa6kVnnv5iIGdiPHZYxb
   BQh3oDtYkL8i.ICgkpQW4OCXj007fmizFgQvO1f1DYxAkbCbztbIHzzAv5Ae
   kQmxBYTDfOMUmfbU996gPH25NYiVuF1z_eY6CB0BFozwv7gnadJBfGhzi6H2
   XndEqKkhYXmSQ1.ixvAn78xYt8eJwi0C3Y0CRt5qbM84S0M0dbI-
  X-Originating-IP: [173.199.158.72]
  Authentication-Results: mta1011.mail.ac4.yahoo.com  from=host.realcashback.com.au; domainkeys=neutral (no sig);  from=incard.com.au; dkim=neutral (no sig)
  Received: from 127.0.0.1  (EHLO host.realcashback.com.au) (173.199.158.72)
    by mta1011.mail.ac4.yahoo.com with SMTP; Thu, 15 Sep 2011 20:25:32 -0700
  Received: from realcas by host.realcashback.com.au with local (Exim 4.69)
      (envelope-from &lt;icard-lifestyle-guide@incard.com.au&gt;)
      id 1R4P3R-0006qu-DD
      for russell.harrower@yahoo.com; Thu, 15 Sep 2011 22:25:29 -0500
  To: russell.harrower@yahoo.com
  Subject: iNcard Eftpos Lifestyle Guide
  X-PHP-Script: realcashback.com.au/system/classes/core.php for 61.88.97.122
  From: iNcard &lt;russell.harrower@incard.com.au&gt;
  Reply-To: iNcard &lt;russell.harrower@incard.com.au&gt;
  Message-ID:&lt; icard-lifestyle-guide@incard.com.au&gt;
  X-Mailer: PHP v5.2.17
  MIME-Version: 1.0
  Content-Type: text/html; boundary="75434adf143cb37a87b1e10e2f08ffd4"
  Sender:  &lt;realcas@host.realcashback.com.au&gt;
  Date: Thu, 15 Sep 2011 22:25:29 -0500
  X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
  X-AntiAbuse: Primary Hostname - host.realcashback.com.au
  X-AntiAbuse: Original Domain - yahoo.com
  X-AntiAbuse: Originator/Caller UID/GID - [500 32002] / [47 12]
  X-AntiAbuse: Sender Address Domain - incard.com.au
  X-Source: /usr/bin/php
  X-Source-Args: /usr/bin/php /home/realcas/public_html/system/classes/core.php 
  X-Source-Dir: realcashback.com.au:/public_html/system/classes
  Content-Length: 8054
  </code></pre>