smtp 主机更改后内联添加电子邮件附件

Question

我有一个 Codeigniter 3.1.4 网站，在托管公司更改其电子邮件主机之前一直运行良好。

我从我的网站发送附有 PDF 的电子邮件，但 smtp 提供商已更改，并且我更新了以下值：

defined('PROTOCOL')        OR define('PROTOCOL', 'mail');
defined('SMTP_HOST')       OR define('SMTP_HOST', 'smtp.titan.email');

我的代码：

public function emailPDF ($id) {
    $timesheet = $this->timesheets_model->get_timesheets($id)[0];
    $filename = $this->getFilename($id);
    $master_company = 'company';
    $companyname = 'companyname';

    $this->load->library('email');

    $config['protocol'] = 'mail';
    $config['smtp_host'] = 'smtp0101.titan.email';
    $config['smtp_user'] = SMTP_USER;
    $config['smtp_pass'] = SMTP_PASS;
    $config['smtp_port'] = 465;

    $config['mailtype'] = 'html';
    $config['charset']  = 'utf-8';
    $config['newline']  = "\r\n";
    $config['mailpath'] = MAILPATH;
    $config['wordwrap'] = TRUE;

    $this->email->initialize($config);

    $this->email->from($master_company->email);
    $this->email->to("{$company->email}");
    $filename = PDF_PATH . $filename;

    chmod($filename, 777);
    
    $this->email->attach($filename, 'attachment');

    $this->email->subject("Service Sheet for $companyname");

    $this->email->message("Hi,<br><br> Please find attached a Service Sheet");

    if($this->email->send()) {
        $this->session->set_flashdata('level', 'success');

        // if ($this->timesheets_model->set_email_sent($id)) {
        //     $this->session->set_flashdata('message', 'Email sent successfully');
        // }
    } else {
        //show_error($this->email->print_debugger());
        $this->session->set_flashdata('message', 'There was a problem sending the email');
        $this->session->set_flashdata('level', 'danger');
    }

}

电子邮件仍会发送，但不再附加 PDF，而是内联添加。

    Content-Type: multipart/alternative; boundary="B_ALT_662fa8a442c93"--B_ALT_662fa8a442c93

   Content-Type: text/plain; charset=UTF-8

   Content-Transfer-Encoding: 8bitHi, Please find attached a Service Sheet for your company. Please do not reply to this email address as this account is not monitored.Regards

   --B_ALT_662fa8a442c93

   Content-Type: text/html; charset=UTF-8

   Content-Transfer-Encoding: quoted-printableHi,=3Cbr=3E=3Cbr=3E Please find attached a Service Sheet for your company=3Cbr=3E=3Cbr=3EPlease do not reply to this email addr=
ess as this account is not monitored.=3Cbr=3E=3Cbr=3ERegards,=3Cbr=3E.--B_ALT_662fa8a442c93--

   Content-Type: application/pdf; name="your+company-2024-04-29-090529-Alarm.pdf"

   Content-Disposition: inline;

   Content-Transfer-Encoding:    base64JVBERi0xLjMKMSAwIG9iago8PCAvVHlwZSAvQ2F0YWxvZwovT3V0bGluZXMgMiAwIFIKL1BhZ2Vz
...

我尝试将

$this->email->attach($filepath, 'inline');

更改为

$this->email->attach($filepath, 'attach');

png 的情况也是如此

没有运气

Answer 1

很明显，PDF 附件内容正在合并到电子邮件文本本身中，但我能看到的唯一可能影响这一点的配置项是：

$config['newline']  = "\r\n";

但据报道，不将此值括在双引号中可能会导致问题，但在我的情况下，双引号是问题所在，将它们括在单引号中修复了它！