Why doesn't swiftmailer send emails to gmail mailboxes?

Question

gmail

Good day!
I'm trying to send letters to various mailboxes (mail.ru and gmail.com). Everything comes to mail.ru, but not to gmail.com. I looked at the examples on the site, it still does not come to gmail.

$transporter = Swift_SmtpTransport::newInstance('smtp.gmail.com', 587, 'tls')
  ->setAuthMode('login')
  ->setUsername('логин')
  ->setPassword('пароль');
$mailer = Swift_Mailer::newInstance($transporter);
$message = (new Swift_Message($subject))
->setFrom($from)
->setTo($to)
>setBody($body, $type);
$result = $mailer->send($message);

What could be the problem? If the code would not work, then the messages would not leave at all, and so it comes to mail.ru.

Answer 1

send
From: [email protected]
via
'smtp.gmail.com', it's
not
at all strange that it allows you to send at least somewhere, rather, you are not saying something