title: Sending mail to a group in postfix
body: <p>I have a group named <code>users</code> and users <code>user1</code> and <code>user2</code>. I have postfix installed and I can get mail for <code>user1@example.com</code> and <code>user2@example.com</code>. Is it possible to send mail to <code>users@examlpe.com</code>, so group members are able to read it? </p>
  
  <p>postfix is installed on ubuntu server and uses pretty much default config, just set the domains and networks and such. Users and groups are created with their home directories.</p>