title: How do you unblock the 993 port if your firewall settings is blocking it?
body: <p>I am trying to retrieve my emails from Gmail using php.
  for writing the host name, this is my code:</p>
  
  <pre><code>$hostname = '{imap.gmail.com:993/imap/ssl}INBOX';
  </code></pre>
  
  <p>I am getting this error:</p>
  
  <pre><code>Warning: imap_open(): Couldn't open stream {imap.gmail.com:993/imap/ssl}INBOX in /home1/mtc/public_html/mtcerp/emailparser/email.php on line 10
  Cannot connect to Gmail: Can not authenticate to IMAP server: [CLOSED] IMAP connection broken (authenticate)
  </code></pre>
  
  <p>I wanted to solve this by unblocking the 993 port as may be my firewall settings is blocking it.</p>
  
  <p>How do i unblock this?  </p>