I'm trying to send a mail via laravel.
Without Laravel it's no proplem for me using 

`$headers = "From: ".FROM_MAIL;
mail(TO_MAIL, "Subject", "Text", $headers);`

In Laravels .env file I have to set some credentials but do I really need to do this? Because it seems to work with default credentials set anywhere in the server.

So my question is: How do I configure the .env file correctly?

If I set nothing:

`MAIL_DRIVER=
MAIL_HOST=
MAIL_PORT=
MAIL_USERNAME=
MAIL_FROM_ADDRESS=mail@hoster.com
MAIL_PASSWORD=
MAIL_ENCRYPTION=
MAIL_FROM_NAME="From Name"`
I get the following error:
`Too few arguments to function Illuminate\Support\Manager::createDriver(), 0 passed in /mnt/web409/e0/11/59802411/htdocs/test/crm/vendor/laravel/framework/src/Illuminate/Support/Manager.php on line 96 and exactly 1 expected`

FYI: I am using a server of Strato!

Thanks for your help!