Laravel 5.5 Expected response code 250 but got code "530" - laravel

Question

I know it is a duplicate issue in StackOverFlow (Laravel SwiftMailer : Expected response code 250 but got code "530", with message "530-5.5.1 Authentication Required) however, I'm done all the remedies discussed there but still no luck. I'm using mailtrap.io using my GMail account. Here is the .env file and mail.php (under config):
.env
MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=XXXX
MAIL_PASSWORD=XXXX
MAIL_ENCRYPTION=tls
mail.php
'driver' => env('MAIL_DRIVER', 'smtp'),
'host' => env('MAIL_HOST', 'smtp.mailtrap.io'),
'port' => env('MAIL_PORT', 2525),
'from' => [
'address' => env('MAIL_FROM_ADDRESS', 'niladriXXX#XXX.com'),
'name' => env('MAIL_FROM_NAME', 'Niladri Banerjee'),
],
'encryption' => env('MAIL_ENCRYPTION', 'tls'),
'sendmail' => '/usr/sbin/sendmail -t -i',
'markdown' => [
'theme' => 'default',
'paths' => [
resource_path('views/vendor/mail'),
],
],
After submitting the valid email from forgot password screen, it throws the following error:
Expected response code 250 but got code "530", with message "530 5.7.1 Authentication required "
Please note: I have already ON 'Allow less secure apps' from "Sign-in & security" from my GMail.
Seeking your help.
PS: I'm running the project in localhost.

Answer 1

I' may suggest you use this as well, it worked for me,
Please Note if you're using Gmail: create a gmail app password, but be sure to your 2 Step verification set up, from sign in and securiity, the following link: https://myaccount.google.com/apppasswords to setup app password,
use that and follow procedure 2 after this return to set up gmail with smtp.
please note: code down below are for mail.php file
(do not forget to use: php artisan config:cache)
after changes to .env file as well
return [
'driver' => env('MAIL_DRIVER', 'smtp'),
'host' => env('MAIL_HOST', 'smtp.mailtrap.io'),
'port' => env('MAIL_PORT', 2525),
'from' => [
'address' => env('MAIL_FROM_ADDRESS', 'lxxxx#xxxx.com'),
'name' => env('MAIL_FROM_NAME', 'myMail'),
],
'encryption' => env('MAIL_ENCRYPTION', 'tls'),
'username' => env('MAIL_USERNAME'),//this setting in .env only leave as is here
'password' => env('MAIL_PASSWORD'),//this setting in .env only leave as is here
'sendmail' => '/usr/sbin/sendmail -bs',
'stream' => [
'ssl' => [
'allow_self_signed' => true,
'verify_peer' => false,
'verify_peer_name' => false,
],
],
'markdown' => [
'theme' => 'default',
'paths' => [
resource_path('views/vendor/mail'),
],
],
];
//procedure 2 for gmail
return [
'driver' => env('MAIL_DRIVER', 'smtp'),
'host' => env('MAIL_HOST', 'smtp.gmail.com'),
'port' => env('MAIL_PORT', 587),
'from' => [
'address' => env('MAIL_FROM_ADDRESS', 'lxxxx#gmail.com'),
'name' => env('MAIL_FROM_NAME', 'myMail'),
],
'encryption' => env('MAIL_ENCRYPTION', 'tls'),
'username' => env('MAIL_USERNAME'),//this setting in .env only leave as is here
'password' => env('MAIL_PASSWORD'),//this setting in .env only (use app password you created for gmail and PLEASE leave as is here
'sendmail' => '/usr/sbin/sendmail -bs',
'stream' => [
'ssl' => [
'allow_self_signed' => true,
'verify_peer' => false,
'verify_peer_name' => false,
],
],
'markdown' => [
'theme' => 'default',
'paths' => [
resource_path('views/vendor/mail'),
],
],
];
Hope it helps.
Kind regards

Answer 2

add MAIL_FROM=mailtrap.io username to your .env file
and php artisan config:cache.
if you see, mail.php needs this for authentication