PHPMailer的发送实例：

$mail = new PHPMailer(true);
            $mail->CharSet = "UTF-8";
            $mail->IsSMTP();                           // 启用SMTP
            $mail->SMTPAuth    = true;                  // 启用SMTP认证
            $mail->Port        = 25;                    // 端口
            $mail->Host        = mail.lxvoip.com;// SMTP server
            $mail->Username    = $smtp["username"];// SMTP server username
            $mail->Password    = $smtp["password"];// SMTP server password
            $mail->AddReplyTo($smtp["from"],$smtp["fromname"]);  //发件人信息
            $mail->From        = $smtp["from"];    //发给地址
            $mail->FromName    = $smtp["fromname"];   //
            $mail->AddAddress($post_to_mail);
          
$mail->Subject = "网络电话 http://www.lxvoip.com"; // 标题
            $mail->WordWrap    = 80; // set word wrap
            $mail->MsgHTML($body);
            $mail->IsHTML(true); // send as HTML
            $mail->Send();