Multiple SMTP Configuration for sending mail . The mail purpose of using this is use to send mail using individual smtp for individual user

MailConfigServiceProvider.php

<?php

namespace App\Providers;

use Config;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\ServiceProvider;

class MailConfigServiceProvider extends ServiceProvider
{
    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        //
    }

    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
        if (\Schema::hasTable('mails')) {

            //make this provider and save it inside config/app.php as a provider. Run php artisan optimize then
            //compose all the views....
            view()->composer('*', function ($view) {
                $mail = DB::table('mails')->where('user_id', auth()->user()->id)->offset(1)->first();
                if ($mail) //checking if table is not empty
                {
                    $config = array(
                        'driver' => $mail->driver,
                        'host' => $mail->host,
                        'port' => $mail->port,
                        'from' => array('address' => $mail->from_address, 'name' => $mail->from_name),
                        'encryption' => $mail->encryption,
                        'username' => $mail->username,
                        'password' => $mail->password,
                        'sendmail' => '/usr/sbin/sendmail -bs',
                        'pretend' => false,
                    );
                    Config::set('mail', $config);
                }
            });

        }
    }
}

mails.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('mails', function (Blueprint $table) {
            $table->id();
           $table->string('driver')->nullable();
            $table->string('host')->nullable();
            $table->string('port')->nullable();
            $table->string('from_address')->nullable();
            $table->string('from_name')->nullable();
            $table->string('encryption')->nullable();
            $table->string('username')->nullable();
            $table->string('password')->nullable();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('mails');
    }
};

MyTestmail.php

<?php

namespace App\Mail;

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

class MyTestMail 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->subject('Send mail subject')
            ->view('emails.myTestMail');
    }
}