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<h2>Installation</h2>
<p>The mail functions are part of the PHP core. There is no installation
needed to use these functions.</p>
<hr />
<h2>Runtime Configuration</h2>
<p>The behavior of the mail functions is affected by settings in the php.ini
file.</p>
<p>Mail configuration options:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table5">
<tr>
<th width="20%" align="left" valign="top">Name</th>
<th width="15%" align="left" valign="top">Default</th>
<th width="42%" align="left" valign="top">Description</th>
<th width="23%" align="left" valign="top">Changeable</th>
</tr>
<tr>
<td valign="top">SMTP</td>
<td valign="top">"localhost"</td>
<td valign="top">Windows only: The DNS name or IP address of the SMTP
server</td>
<td valign="top">PHP_INI_ALL</td>
</tr>
<tr>
<td valign="top">smtp_port</td>
<td valign="top">"25"</td>
<td valign="top">Windows only: The SMTP port number. Available since PHP 4.3</td>
<td valign="top">PHP_INI_ALL</td>
</tr>
<tr>
<td valign="top">sendmail_from</td>
<td valign="top">NULL</td>
<td valign="top">Windows only: Specifies the "from" address to be used
in email sent from PHP</td>
<td valign="top">PHP_INI_ALL</td>
</tr>
<tr>
<td valign="top">sendmail_path</td>
<td valign="top">NULL</td>
<td valign="top">Unix systems only: Specifies where the sendmail program can be found (usually /usr/sbin/sendmail
or /usr/lib/sendmail)</td>
<td valign="top">PHP_INI_SYSTEM</td>
</tr>
</table>
<br />
<hr />
<h2>PHP Mail Functions</h2>
<p><b>PHP</b>: indicates the earliest version of PHP that supports the
function.</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table4">
<tr>
<th width="20%" align="left" valign="top">Function</th>
<th width="75%" align="left" valign="top">Description</th>
<th width="5%" align="left" valign="top">PHP</th>
</tr>
<tr>
<td valign="top">ezmlm_hash()</td>
<td valign="top">Calculates the hash value needed by the EZMLM mailing
list system</td>
<td valign="top">3</td>
</tr>
<tr>
<td valign="top"><a href="func_mail_mail.asp">mail()</a></td>
<td valign="top">Allows you to send emails directly from a script</td>
<td valign="top">3</td>
</tr>
</table>
<br />
<hr>
<h2>PHP Mail Constants</h2>
<p><b>None.</b><br />
</p>
<hr />
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