title: LARAVEL - send mail with domain email
body: <p>I have a problem with sending mail by domain mail as follows:
  My .env file:</p>
  
  <pre><code>MAIL_DRIVER=smtp
  MAIL_HOST=mail.my-domain.com
  MAIL_PORT=465
  MAIL_USERNAME=no-reply@my-domain.com
  MAIL_PASSWORD=password
  MAIL_ENCRYPTION=tls
  </code></pre>
  
  <p>It reported the following error:</p>
  
  <pre><code>Connection could not be established with host mail.my-domain.vn [Network is unreachable #101]
  </code></pre>
  
  <p>Any help much appreciated! Thanks very much!</p>