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

This problem occurs when some changes have been made to files, specifically in .env file

Clear cache using artisan command

php artisan cache:clear

Clear config

php artisan config:clear

Restart your server

sudo service apache2 restart

More: Try clearing browsers cache & cookies. Hope that works