Raw email sender Artisan command to help test email pipelines are well setup; Decoupled from any project specific mailable.

SendTestEmailCommand.php

namespace App\Console\Commands;

use Illuminate\Support\Facades\Mail;
use Illuminate\Console\Command;

class SendTestEmailCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'send:test-email {email?} {subject?} {message?}';
    
    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Send a test email using the configured mailer.';

    public function handle()
    {
        // Get the optional arguments
        $email = $this->option('email') ?: '[email protected]'; // default to "[email protected]"
        $subject = $this->option('subject') ?: 'Test Email';
        $message = $this->option('message') ?: 'This is a test email sent using the Laravel Artisan command.';

        // Send a plain text message using Mail::raw()
        Mail::raw([
            'subject' => $subject,
            'message' => $message,
            'from' => config('mail.from.address'),
            'to' => $email,
        ], function ($message) use ($subject, $message) {
            $message->subject($subject)
                ->text($message);
        });
    }
}