verify email using accounts.ui package

Question

I want to send a verification email when some user is created. I use the accounts-password package, so any Accounts methods are called in my code.

I read in documentati

Answer 1

You need specify mail in enviroment variables. Then use Accounts.sendVerificationEmail(userId, [email]) in callback of Account.onCreateUser sorry for mistake and delay.

Like this (below is full example js file):

Template.register.events({
'submit #register-form' : function(e, t) {
  e.preventDefault();
  var email = t.find('#account-email').value
    , password = t.find('#account-password').value;

    // Trim and validate the input

  Accounts.onCreateUser({email: email, password : password}, function(err){
      if (err) {
        // Inform the user that account creation failed
      } else {
        // Success. Account has been created and the user
        // has logged in successfully.
       Accounts.sendVerificationEmail(this.userId, email);
      }
    });

  return false;
}  });

if(Meteor.isServer){
   Meteor.startup(function(){
      process.env.MAIL_URL='smtp://your_mail:your_password@host:port'
   }
}

I refered to this pages : http://blog.benmcmahen.com/post/41741539120/building-a-customized-accounts-ui-for-meteor

http://sendgrid.com/blog/send-email-meteor-sendgrid/

How come my Meteor app with accounts package is not sending a verification email?