It looks like you have the correct configuration set up in your .env and config/mail.php files. It's possible that the issue is related to your firewall settings. Try temporarily disabling your firewall and running the tests again. If that works, you can then try to configure your firewall to allow connections on port 2525.
If that doesn't work, you can try using a different port for your SMTP server. You can do this by changing the MAIL_PORT value in your .env file to a different port (e.g. MAIL_PORT=25). Then, you'll need to update the port value in your config/mail.php file to match the new port (e.g. 'port' => env('MAIL_PORT', 25)).
If that still doesn't work, you can try using a different SMTP server. You can do this by changing the MAIL_HOST value in your .env file to the hostname of the new SMTP server (e.g. MAIL_HOST=smtp.example.com). Then, you'll need to update the host value in your config/mail.php file to match the new hostname (e.g. 'host' => env('MAIL_HOST', 'smtp.example.com')).
If you're still having issues, you can try using a different mailer (e.g. MAIL_MAILER=sendmail). You can find more information about configuring the mailer in the Laravel documentation: https://laravel.com/docs/7.x/mail#configuration.
Hope this helps!