打开你电脑里的PHP.INI文件，找到如下位置，添加红线部分的内容，路径就是你PHPMailer存放的位置：
保存，重启apache.
然后借用readme里的一个例子，稍微改一下就可以用了，由于只做最简单的测试，很多东西我注释掉了。
send.php
复制代码 代码如下:
<?php
require("class.phpmailer.php");
$mail = new PHPMailer();
$address = $_POST['address'];
$mail->IsSMTP(); // set mailer to use SMTP
$mail->Host = "mail.songzi.org"; // specify main and backup server
$mail->SMTPAuth = true; // turn on SMTP authentication
$mail->Username = "phpmailer@songzi.org"; // SMTP username
$mail->Password = "******"; // SMTP password
$mail->From = "phpmailer@songzi.org";
$mail->FromName = "songzi";
$mail->AddAddress("$address", "");
//$mail->AddAddress(""); // name is optional
//$mail->AddReplyTo("", "");
//$mail->WordWrap = 50; // set word wrap to 50 characters
//$mail->AddAttachment("/var/tmp/file.tar.gz"); // add attachments
//$mail->AddAttachment("/tmp/image.jpg", "new.jpg"); // optional name
//$mail->IsHTML(true); // set email format to HTML
$mail->Subject = "PHPMailer测试邮件";
$mail->Body = "Hello,这是松子的测试邮件";
$mail->AltBody = "This is the body in plain text for non-HTML mail clients";
if(!$mail->Send())
{
echo "Message could not be sent. <p>";
echo "Mailer Error: " . $mail->ErrorInfo;
exit;
}
echo "Message has been sent";
?>
test.php
复制代码 代码如下:
<html>
<body>
<h3>phpmailer Unit Test</h3>
请你输入<font color="#FF6666">收信</font>的邮箱地址:
<form name="phpmailer" action="send.php" method="post">
<input type="hidden" name="submitted" value="1"/>
邮箱地址: <input type="text" size="50" name="address" />
<br/>
<input type="submit" value="发送"/>
</form>
</body>
</html>