Error sending laravel mail, what is the reason?

Question

Laravel

When setting the condition, it gives an error 500 server error
Error in the logs

prod.ERROR: Address in mailbox given [] does not comply with RFC 2822, 3.6.2. {"exception":"[object] (Swift_RfcComplianceException(code: 0): Address in mailbox given [] does not comply with RFC 2822, 3.6.2. at /var/www/vhosts/movewheels.com/httpdocs/external-form/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php:355)

The code

public function build()
    {
        $entity = Entity::find($this->entityId);
        if(isset($_COOKIE['utm_sources']) && $_COOKIE['utm_sources'] == 'google')  {
            return $this
            ->markdown('order_mail')
            ->from(env('MAIL_FROM_ADDRESS_UTM'), env('MAIL_FROM_NAME'))
            ->subject('Order from Movewheels.com')
            ->with([
                'entity' => $entity
            ]);
        }
        else {
            return $this
                ->markdown('order_mail')
                ->from(env('MAIL_FROM_ADDRESS'), env('MAIL_FROM_NAME'))
                ->subject('Order from Movewheels.com')
                ->with([
                    'entity' => $entity
                ]);
        }
    }

Answer 1

config('mail.from.address')
etc.

Answer 2

It looks like you don't have a valid email address. With spaces or with special characters except for the dog sign