Connection could not be established with host mailtrap.io [php_network_getaddresses: getaddrinfo failed: No such host is known. #0]

Question

I am getting below error:

Connection could not be established with host smtp.gmail.com [php_network_getaddresses: getaddrinfo failed: No such host is kno

Answer 1

After modify your settings you need to run: php artisan config:cache

Without those laravel will use old ones.