Unable to use gmail SMTP

I am trying to use gmail smtp using node_mailer. I get following error on my nodejs logs (using nodester). Here is my code: 

var email = require('mailer');
email.send({
    host : "smtp.gmail.com",              
    port : "465",                     
    ssl : true,
    domain : "domain.com",            
    to : "emailId@gmail.com",
    from : "email@gmail.com",
    subject : "You have been registered",
    body: "<B>Hello! This is a test of the node_mailer.</B>",
    authentication : "login",        // auth login is supported; anything else is no auth
    username : /* username */,
    password : /* password */      
    },
    function(err, result){
      if(err){ self.now.error(err); console.log(err); return;}
      else this.now.successfullySent(result);
});

I am not getting any error in the stack but email is not getting delivered.

@work4liberty and @David Ellis. Thanks for both of yours inputs but it seems that the problem was not with my server code, I was sending incorrect value in emailId from my client-side javascript. Nodemailer did help me debug the issue with correct text in error.

A couple things:

  1. Your code as written will throw an interpreter error and not run. (No quotes around an email address, for instance.)
  2. That library hasn't been updated in a while. I highly recommend the actively-developed and similarly-named Nodemailer library that has shorthand for common services such as gmail's SMTP.

Full Disclosure: I contributed the Amazon SES functionality to Nodemailer (though a recent rewrite of the underlying architecture from 0.1.x to 0.3.x means I don't show up on git blame, anymore).

EDIT: I took a closer look at your code. Assuming you don't have the typos in your actual code, I suspect the following line is the culprit: this.now.successfullySent(result);

Basically, the callback function's this is not what you think it is. You'll want to cache the this object in its scope by assigning it to a variable like self. (Assuming we're not dealing with a problem in the underlying library.)

Replacing the xxx with my password this code works for me copy and paste that and see how it works if it dose not work for you maybe it is just lag witch happens from time to time or (I hope not) your ip or something in your msg make gmail think it was spam

var email = require('mailer');
email.send({
    host : "smtp.gmail.com",
    port : "465",
    ssl : true,
    domain : "domain.com",
    to : "work4liberty@gmail.com",
    from : "work4liberty@gmail.com",
    subject : "You have been registered",
    body: "<B>Hello! This is a test of the node_mailer.</B>",
    authentication : "login",        // auth login is supported; anything else $
    username : 'work4liberty@gmail.com',
    password : 'xxx'
    },
    function(err, result){
      if(err){ self.now.error(err); console.log(err); return;}
      else console.log('looks good')
});