php - Mailgun API 在 Laravel 8.54 中默默失败

Question

我花了一整天的时间试图理解为什么我尝试使用 Mailgun API 发送邮件在我的 Laravel 8 项目中失败了。我知道这里还有其他问题也有类似的投诉，但到目前为止，这些其他问题的答案都没有帮助。

一个潜在的线索是，当我在 .env 文件中注释掉 mailgun 域和 secret 时，我没有收到任何错误。但我无法确定原因。

我正在使用美国位置的免费沙箱域。

这是我的环境变量:

MAIL_MAILER=mailgun
MAIL_HOST=smtp.mailgun.org
MAIL_PORT=587
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
MAIL_FROM_NAME="${APP_NAME}"
MAILGUN_DOMAIN=https://api.mailgun.net/v3/....mailgun.org
MAILGUN_SECRET=5...9

服务.php:

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Third Party Services
    |--------------------------------------------------------------------------
    |
    | This file is for storing the credentials for third party services such
    | as Mailgun, Postmark, AWS and more. This file provides the de facto
    | location for this type of information, allowing packages to have
    | a conventional file to locate the various service credentials.
    |
    */

    'mailgun' => [
        'domain' => env('MAILGUN_DOMAIN'),
        'secret' => env('MAILGUN_SECRET'),
    ],

    'postmark' => [
        'token' => env('POSTMARK_TOKEN'),
    ],

    'ses' => [
        'key' => env('AWS_ACCESS_KEY_ID'),
        'secret' => env('AWS_SECRET_ACCESS_KEY'),
        'region' => env('AWS_DEFAULT_REGION', 'us-east-1'),
    ],

];

邮件.php:

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Default Mailer
    |--------------------------------------------------------------------------
    |
    | This option controls the default mailer that is used to send any email
    | messages sent by your application. Alternative mailers may be setup
    | and used as needed; however, this mailer will be used by default.
    |
    */

    'default' => env('MAIL_MAILER', 'mailgun'),

    /*
    |--------------------------------------------------------------------------
    | Mailer Configurations
    |--------------------------------------------------------------------------
    |
    | Here you may configure all of the mailers used by your application plus
    | their respective settings. Several examples have been configured for
    | you and you are free to add your own as your application requires.
    |
    | Laravel supports a variety of mail "transport" drivers to be used while
    | sending an e-mail. You will specify which one you are using for your
    | mailers below. You are free to add additional mailers as required.
    |
    | Supported: "smtp", "sendmail", "mailgun", "ses",
    |            "postmark", "log", "array"
    |
    */

...

示例邮件.php:

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;

class ExampleMail extends Mailable
{
    use Queueable, SerializesModels;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this
            ->from('<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="82ecedaff0e7f2eefbc2e7fae3eff2eee7ace1edef" rel="noreferrer noopener nofollow">[email protected]</a>')
            ->markdown('emails.example');
    }
}

在我的 Controller 中，我正在执行以下操作:

Mail::to('[my hard-coded email]')->send(new ExampleMail());

谁能帮我找出问题所在吗？我安装了 guzzle: "guzzlehttp/guzzle": "^7.4"，所以这不应该是问题，即使是问题，至少也会出现某种错误。

帮助将不胜感激。我对 Laravel 还很陌生，所以目前我有点不知所措。

Answer 1

我刚刚遇到了同样的问题...您也可以按 Ctrl+p，然后输入 MailgunTransport.php 并按 Enter >，它将打开 mailgun 传输文件或仅导航 vendor>laravel>framework>src>illumate>Mail>Transport 并打开 MailgunTransport.php 文件。

在第 80 行注释掉此 //throw new Swift_TransportException('Request to Mailgun API failed.', $e->getCode(), $e); 并将其替换为 dd($e) 然后再次运行脚本。这将显示您遇到的确切问题，并且通过这种方式修复会更容易，而不是诸如 Request to Mailgun API failed.

解决任何问题后，请不要忘记取消第 80 行的注释