title: Error code '354' on send email on Laravel
body: <p>Hi I'm making a web application and need to send some e-mails. I'm using Laravel 5.6, and make the e-mail feature at localhost using Mailtrap to test it, worked fine. But when I put it on the server I got a weird error, like in the picture bellow.</p>
  
  <p>I've configured the system to my host, Hostinger settings.</p>
  
  <p>This is the config code in the .env file</p>
  
  <pre><code>MAIL_DRIVER=smtp
  MAIL_HOST=mx1.hostinger.com.br
  MAIL_PORT=587
  MAIL_USERNAME=E_MAIL_HERE
  MAIL_PASSWORD=PASSWORD_HERE
  MAIL_ENCRYPTION=null
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/1War0.png" rel="noreferrer"><img src="https://i.stack.imgur.com/1War0.png" alt="enter image description here"></a></p>