Email Not Being Sent in Laravel 8 using Mailgun Smtp - php

Question

My email set up works well and send emails using my mailtrap set up but when I change the .env and mail.php file to that of Mailgun it does not sends the email. I only get a success message without any email. The emails I am using for testing are verified in my mailgun accounts
.ENV
MAIL_MAILER=mailgun
MAIL_HOST=smtp.mailgun.org
MAIL_PORT=587
MAIL_USERNAME=postmaster#sandboxaf*********.mailgun.org
MAIL_PASSWORD=3b0d1862f55dcb18c62b***********
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=test#gmail.com
MAIL_FROM_NAME="${APP_NAME}"
MAIL_SECRET=53774448859c1ffa6fad57b4a8*****************
MAIL_DOMAIN=sandboxaf49fa3222d1441e8*********.mailgun.org
MAIL_PASSWORD=3b0d1862f55dcb18c62bf***************
Mail.php
'default' => env('MAIL_MAILER', 'mailgun'),
'mailers' => [
'smtp' => [
'transport' => 'mailgun',
'host' => env('MAIL_HOST', 'smtp.mailgun.org'),
'port' => env('MAIL_PORT', 587),
'encryption' => env('MAIL_ENCRYPTION', 'tls'),
'username' => env('MAIL_USERNAME'),
'password' => env('MAIL_PASSWORD'),
'timeout' => null,
'auth_mode' => null,
],
'ses' => [
'transport' => 'ses',
],
'mailgun' => [
'transport' => 'mailgun',
],
]
Controller
Mail::to($request->email)->send(new PasswordResetMail($code,$url));
if (Mail::failures()) {
return response('failure');
}
else{
return response('success');
}
Have tried working on the suggestions from this
linkEmail Not Being Sent in Laravel 8 using Mailgun APIand this linkMailgun emails not sending from Laravel 8 Valet app as well as other links without any success