问如何用php发送更长的邮件

EN

    try {



        $mail = new PHPMailer(true);          
            //Server settings
        $mail->isSMTP();       
        $mail->SMTPDebug = 0;                                 // Enable verbose debug output
        $mail->Host = 'smtp.gmail.com';  // Specify main and backup SMTP servers
        $mail->SMTPAuth = true;                               // Enable SMTP authentication
        $mail->Username = 'example@example.com';                 // SMTP username
        $mail->Password = 'pass';                           // SMTP password
        $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
        $mail->Port = 587;                                    // TCP port to connect to
        $mail->SMTPOptions = array(
            'ssl' => array(
                'verify_peer' => false,
                'verify_peer_name' => false,
                'allow_self_signed' => true
            )
        );

        //Recipients
        $mail->setFrom('example@example.com', 'name');

        if(is_array($this->Emails)){
            foreach($this->Emails as $email){
                $mail->addAddress($email);     // Add a recipient
            }
        }
        else{
            $mail->addAddress($this->Emails);     // Add a recipient
        }

        if(isset($this->Attachments)){

            if(is_array($this->Attachments)){
                foreach($this->Attachments as $Attachment){
                    $mail->addAttachment($Attachment);         // Add attachments
                }
            }
            else{
                $mail->addAttachment($this->Attachments);         // Add attachments
            }

        }

        //Content
        $mail->isHTML(true);                                  // Set email format to HTML
        $mail->Subject = $this->Subject;
        $mail->Body    = $this->Body;

        $mail->send();
        return true;