Expected response code 250 but got code “530”, with message "530 5.7.1 Authentication required

Question

I got stuck on this error I trying to configure SMTP mail on laravel

Answer 1

Yep, and if you have tried all the above solutions (what's more likely to happen) and none work for you, it may happen that Guzzle is not installed.

Laravel ships mailing tools, by which is required the Guzzle framework, but it won't be installed, and AS OF the documentation, will have to install it manually: https://laravel.com/docs/master/mail#driver-prerequisites

composer require guzzlehttp/guzzle