title: Fail to send mail through send grid smtp.
body: <p>I am using sendgrid for sending mail in laravel it work perfectly on my local and one aws ec2 instance.But it fail to send mail on another ec2 instance.I tried all the port like 2525,25,2587,587 using tls encryption.But nothing work for me.It give the following error</p>
  
  <blockquote>
    <p>Failed to authenticate on SMTP server with username "apikey" using 2 possible authenticators</p>
  </blockquote>