mail is not sending yahoo small business - php

Question

I am trying to send email using Laravel via yahoo small business but I am getting This error please help me.
This is what I am getting an error(Image link)
My .env file
MAIL_DRIVER=smtp
MAIL_HOST=smtp.bizmail.yahoo.com
MAIL_PORT=465
MAIL_USERNAME=****#yahoo.com
MAIL_PASSWORD=*******
MAIL_ENCRYPTION=null
My Send email Code
public function index()
{
$this->sendMail('mails.subscribe', '******#****.**', '******#**.**',
'Testing', 'Test');
}
public function sendMail($bladeName, $from, $to, $subject, $body)
{
Mail::send(['html' => $bladeName], ['user' => $body], function
($message) use ($to, $subject, $from) {
$message->to($to)->subject($subject);
$message->from($from, 'Test');
});
}

Answer 1

Try to change the smtp port to : 587
Sorry for my other answer I overlooked your code.
your mail function is wrong that's why you are not connecting
try :
Mail::send('emails.welcome', ['key' => 'value'], function($message)
{
$message->to('foo#example.com', 'John Smith')->subject('Welcome!');
});
One more :
Mail::send('emails.welcome', $data, function($message)
{
$message->from('us#example.com', 'Laravel');
$message->to('foo#example.com')->cc('bar#example.com');
$message->attach($pathToFile);
});