Hi, I am new to Laravel and trying to setup the mail functionality. I opened a mailtrap.io account for this and used my credentials in the .env config

MAIL_MAILER=smtp

MAIL_HOST=smtp.mailtrap.io

MAIL_PORT=2525

MAIL_USERNAME=xxxxxxx//replaced with my true username

MAIL_PASSWORD=xxxxx//replaced with my true password

MAIL_ENCRYPTION=tls

MAIL_FROM_ADDRESS=test@example.com

MAIL_FROM_NAME="${APP_NAME}"

I created a mailable named WelcomeMail.php

namespace App\Mail;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
class WelcomeMail 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->markdown('emails.welcome');
}

}

and a view welcome.blade.php

@component('mail::message')
# Hello from my site on Laravel
The body of your message
Thanks,<br>
{{ config('app.name') }}
@endcomponent

then I added a route to web.php

 Route::get('/email', function () {
     Mail::to('me@mydomain')->send(new WelcomeMail());
     return 'done';
 });

I restarted the server visited localhost:8000/email and I got this

Swift_TransportException
Expected response code 354 but got an empty response
http://localhost:8000/email 

The trouble is the same when I use other servers like gmail or the one of my personal hosting.

Could somebody help me finding out what's happening?