title: PHP mail() function return true but no message
body: <p>This my problem,</p>
  
  <p>I have a simple PHP script to send email to localhost with mercury mail server and read it with Mozilla Thunderbird. And it's work.</p>
  
  <p>And then, I upgarde XAMPP version to 1.8.1 and  my function return true but no email delivered.</p>
  
  <pre><code>&lt;?php
  $to = "root@localhost.com";
  $subject = "Hi!";
  $body="test";
  
  $headers = "From: root@localhost.com"; 
  
  if (mail($to, $subject, $body, $headers)) {
      echo "Message successfully sent!";
  } else {
      echo "Message delivery failed...";
  }
  ?&gt;
  </code></pre>
  
  <p>I tried to send email with Thunderbird to root@localhost.com and it work.</p>
  
  <p>So iI try to change mail function in php.ini to this but not work</p>
  
  <pre><code>    [mail function]
      ; XAMPP: Comment out this if you want to work with an SMTP Server like Mercury
       SMTP = localhost
       smtp_port = 25
  
      ; For Win32 only.
      ; http://php.net/sendmail-from
      sendmail_from = root@localhost.com
  
      ; XAMPP IMPORTANT NOTE (1): If XAMPP is installed in a base directory with spaces (e.g. c:\program filesC:\xampp) fakemail and mailtodisk do not work correctly.
      ; XAMPP IMPORTANT NOTE (2): In this case please copy the sendmail or mailtodisk folder in your root folder (e.g. C:\sendmail) and use this for sendmail_path.  
  
      ; XAMPP: Comment out this if you want to work with fakemail for forwarding to your mailbox (sendmail.exe in the sendmail folder)
      sendmail_path = "\"C:\xampp\sendmail\sendmail.exe\" -t"
  
      ; XAMPP: Comment out this if you want to work with mailToDisk, It writes all mails in the C:\xampp\mailoutput folder
      sendmail_path = "C:\xampp\mailtodisk\mailtodisk.exe"
  
      ; Force the addition of the specified parameters to be passed as extra parameters
      ; to the sendmail binary. These parameters will always replace the value of
      ; the 5th parameter to mail(), even in safe mode.
      ;mail.force_extra_parameters =
  
      ; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename
      mail.add_x_header = Off
  
      ; Log all mail() calls including the full path of the script, line #, to address and headers
      ;mail.log = "C:\xampp\php\logs\php_mail.log"
  
  I try to change sendmail.ini to this but not work
  
  ; configuration for fake sendmail
  
  ; if this file doesn't exist, sendmail.exe will look for the settings in
  ; the registry, under HKLM\Software\Sendmail
  
  [sendmail]
  
  ; you must change mail.mydomain.com to your smtp server,
  ; or to IIS's "pickup" directory.  (generally C:\Inetpub\mailroot\Pickup)
  ; emails delivered via IIS's pickup directory cause sendmail to
  ; run quicker, but you won't get error messages back to the calling
  ; application.
  
  smtp_server=localhost
  
  ; smtp port (normally 25)
  
  smtp_port=25
  
  ; SMTPS (SSL) support
  ;   auto = use SSL for port 465, otherwise try to use TLS
  ;   ssl  = alway use SSL
  ;   tls  = always use TLS
  ;   none = never try to use SSL
  
  smtp_ssl=auto
  
  ; the default domain for this server will be read from the registry
  ; this will be appended to email addresses when one isn't provided
  ; if you want to override the value in the registry, uncomment and modify
  
  ;default_domain=mydomain.com
  
  ; log smtp errors to error.log (defaults to same directory as sendmail.exe)
  ; uncomment to enable logging
  
  error_logfile=error.log
  
  ; create debug log as debug.log (defaults to same directory as sendmail.exe)
  ; uncomment to enable debugging
  
  ;debug_logfile=debug.log
  
  ; if your smtp server requires authentication, modify the following two lines
  
  auth_username=
  auth_password=
  
  ; if your smtp server uses pop3 before smtp authentication, modify the 
  ; following three lines.  do not enable unless it is required.
  
  pop3_server=
  pop3_username=
  pop3_password=
  
  ; force the sender to always be the following email address
  ; this will only affect the "MAIL FROM" command, it won't modify 
  ; the "From: " header of the message content
  
  force_sender=
  
  ; force the sender to always be the following email address
  ; this will only affect the "RCTP TO" command, it won't modify 
  ; the "To: " header of the message content
  
  force_recipient=
  
  ; sendmail will use your hostname and your default_domain in the ehlo/helo
  ; smtp greeting.  you can manually set the ehlo/helo name if required
  
  hostname=
  </code></pre>
  
  <p>Any idea?</p>