title: can't connect to 587
body: <p>When I run </p>
  
  <pre><code>telnet localhost 587
  </code></pre>
  
  <p>There's error:</p>
  
  <pre><code>telnet: Unable to connect to remote host: Connection refused
  </code></pre>
  
  <p>But why I can connect to localhost 25?</p>
  
  <pre><code>Trying 127.0.0.1...
  Connected to localhost.
  Escape character is '^]'.
  </code></pre>
  
  <p>I'm using postfix as my SMTP server.</p>
  
  <p>Thanks a lot!</p>