一個功能齊全的電子郵件創建和發送PHP類庫：PHPMailer

PHPMailer一個功能齊全的電子郵件創建和發送PHP類庫。

特性

• 可能是世界上最流行的用于從PHP發送電子郵件的代碼！
• 非常多的開源項目在使用：Drupal, SugarCRM, Yii, Joomla! and many more
• 集成的SMTP支持 - 發送不需要一個本地的郵件服務器
• Send emails with multiple TOs, CCs, BCCs and REPLY-TOs
• Multipart/alternative emails for mail clients that do not read HTML email
• Support for UTF-8 content and 8bit, base64, binary, and quoted-printable encodings
• SMTP authentication with LOGIN, PLAIN, NTLM and CRAM-MD5 mechanisms over SSL and TLS transports
• Native language support
• DKIM and S/MIME signing support
• Compatible with PHP 5.0 and later
• Much more!
</ul>

示例：

<?php
require 'PHPMailerAutoload.php';

$mail = new PHPMailer;

//$mail->SMTPDebug = 3;                               // Enable verbose debug output

$mail->isSMTP();                                      // Set mailer to use SMTP
$mail->Host = 'smtp1.example.com;smtp2.example.com';  // Specify main and backup SMTP servers
$mail->SMTPAuth = true;                               // Enable SMTP authentication
$mail->Username = 'user@example.com';                 // SMTP username
$mail->Password = 'secret';                           // SMTP password
$mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587;                                    // TCP port to connect to

$mail->From = 'from@example.com';
$mail->FromName = 'Mailer';
$mail->addAddress('joe@example.net', 'Joe User');     // Add a recipient
$mail->addAddress('ellen@example.com');               // Name is optional
$mail->addReplyTo('info@example.com', 'Information');
$mail->addCC('cc@example.com');
$mail->addBCC('bcc@example.com');

$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 = 'Here is the subject';
$mail->Body    = 'This is the HTML message body <b>in bold!</b>';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

if(!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}

項目主頁：http://www.baiduhome.net/lib/view/home/1413948842840