Cannot send email from website using mail server

please paste the code you are using to send the email

To be clear: I am using my [email protected] to send email to [email protected]

Controller that sends email

Mail::to('[email protected]')->send(new InquiryEmail($data));

InquiryEmail class

public function __construct($data)
{
    $this->data = $data;
}

public function build()
{
    return $this->from('[email protected]')
        // inquiry is a html email that gets built out of data variable
        ->view('inquiry')
        ->with([
            'data' => $this->data
        ]);
}

.env snippet

MAIL_DRIVER=smtp
MAIL_HOST=mail.compute-it.org.uk
MAIL_PORT="587"
[email protected]
MAIL_PASSWORD=***********
MAIL_ENCRYPTION=tls

mail.php (think this is used over my .env

return [
    'driver' => env('MAIL_DRIVER', 'smtp'),
    'host' => env('MAIL_HOST', 'mail.compute-it.org.uk'),
    'port' => env('MAIL_PORT', 587),  
    'from' => [
        'address' => env('MAIL_FROM_ADDRESS', '[email protected]'),
        'name' => env('MAIL_FROM_NAME', 'webserver'),
    ],
    'encryption' => env('MAIL_ENCRYPTION', 'tls'),   
    'username' => env('[email protected]'),
    'password' => env('***********'),
    'sendmail' => '/usr/sbin/sendmail -bs',    
    'markdown' => [
        'theme' => 'default',
        'paths' => [
            resource_path('views/vendor/mail'),
        ],
    ],
    'log_channel' => env('MAIL_LOG_CHANNEL'),

];

Any help anyone could give would be great. I am no closer to resolving this.

Client host rejected: Access denied

look like you are not allow to send

if your password has # or special character you need to quote it

MAIL_PASSWORD='strong#password'

The problem is here. You are looking for env variables by value, not key

'username' => env('[email protected]'),
    'password' => env('***********'),

Should be

'username' => env(MAIL_USERNAME),
    'password' => env(MAIL_PASSWORD),

@sinnbeck I could honestly kiss you, Thanks. I have had bad tunnel vision on this problem. Clearly. As my error was in front of me. Again, thanks for the help.

One thing I do not get is why did this work on my local machine?

Perhaps your config was cached with the correct setup? Remember to mark best answer if it was solved :)

@sinnbeck "Perhaps your config was cached with the correct setup? " that must have been it as I did not do a cache clear when I ran it locally so those setting would never have been updated.