Laravel 11中邮件未发送至指定用户邮箱，默认发送到.env的MAIL_TO_ADDRESS问题求助

各位好，我在Laravel项目里做用户创建后发送通知邮件的功能时遇到了问题：邮件并没有发送给目标用户的邮箱，反而默认发到了.env文件里设置的MAIL_TO_ADDRESS地址，想请教大家怎么排查解决这个问题。

我是这样调用邮件发送逻辑的（UsersController.php）：

....
$user_created = (new UserCreated($user))                
                ->onQueue('emails')->afterCommit();

Mail::to($user->email)
    ->queue($user_created);
.....

这是对应的Mailable类UserCreated.php：

<?php

namespace App\Mail;

use App\Models\Listing;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\URL;
use Throwable;
use Illuminate\Mail\Mailables\Content;
use Illuminate\Mail\Mailables\Envelope;
use Illuminate\Mail\Mailables\Address;

class UserCreated extends Mailable
{
    use Queueable, SerializesModels;

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

    /**
     * Get the message content definition.
     */
    public function content(): Content
    {
        return new Content(
            markdown: 'emails.users.created',
            with: [....]
        );
    }

    /**
     * Get the message envelope.
     */
    public function envelope(): Envelope
    {
        return new Envelope(
            from: new Address(config('mail.from.address'), config('mail.from.name')),
            subject: 'test'          
        );
    }
    
}

我确认$user->email是有正确值的，但邮件就是一直发送到.env里配置的MAIL_TO_ADDRESS=admin@myweb.com，有没有小伙伴遇到过类似的问题？或者能帮我看看代码哪里可能出问题了吗？

备注：内容来源于stack exchange，提问作者Luis