dockersyshome/app/Mail/ContactReplyMail.php

<?php

namespace App\Mail;

use App\Models\ContactMessage;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Mail\Mailables\Content;
use Illuminate\Mail\Mailables\Envelope;
use Illuminate\Queue\SerializesModels;

class ContactReplyMail extends Mailable
{
    use Queueable, SerializesModels;

    public $contact;
    public $replyMessage;

    /**
     * Create a new message instance.
     */
    public function __construct(ContactMessage $contact, $replyMessage)
    {
        $this->contact = $contact;
        $this->replyMessage = $replyMessage;
    }

    /**
     * Get the message envelope.
     */
    public function envelope(): Envelope
    {
        return new Envelope(
            subject: 'Re: ' . ($this->contact->subject->name ?? 'Contato SysSiteCMS'),
        );
    }

    /**
     * Get the message content definition.
     */
    public function content(): Content
    {
        return new Content(
            view: 'emails.contact-reply',
        );
    }
}