NickServ authentification.

[Slind14]

Hey,
could anyone get the bot to work with sasl/password. Whenever I try it doesn't join the irc server anymore. What I set is:

var config = {
  nick: 'brand-relaybot',
  username: 'brand-relaybot',
  realName: 'brand relaybot',
  password: '************************************',
  server: 'anarchy.esper.net',
  sasl: true,
  showErrors: true
  [slack stuff]
};

Edit: maybe I understood it wrong and the password is for the irc server not the user. Is there a way to authenticate with NickServe?