Meteor registration verification email not sent on production -

i have tested meteor app on dev , verification email sent out. on production not. maybe content of smtp.js? code follows:

// server/smtp.js  meteor.startup(function () {    var smtp = {      username: 'dummy@wbs.co.za',      password: 'hw783378hjshd',      server:   'smtp.wbs.co.za',      port: 25    }      process.env.mail_url = 'smtp://' + encodeuricomponent(smtp.username) + ':' + encodeuricomponent(smtp.password)     + '@' + encodeuricomponent(smtp.server) + ':' + smtp.port;  });

// (server-side)  meteor.startup(function() {    // default, email sent no-reply@meteor.com. if wish receive email users asking account, sure set email address can receive email at.    accounts.emailtemplates.from = 'noreply <no-reply@meteor.com>';      // public name of application. defaults dns name of application (eg: awesome.meteor.com).    accounts.emailtemplates.sitename = 'no reply';      // function takes user object , returns string subject line of email.    accounts.emailtemplates.verifyemail.subject = function(user) {      return 'confirm email address';    };      // function takes user object , url, , returns body text email.    // note: if need return html instead, use accounts.emailtemplates.verifyemail.html    accounts.emailtemplates.verifyemail.html = function(user, url) {      return 'click on following link verify email address: ' + url;    };  });        // (server-side) called whenever login attempted  accounts.validateloginattempt(function(attempt){    if (attempt.user && attempt.user.emails && !attempt.user.emails[0].verified ) {      console.log('email not verified');  	throw new meteor.error(403, 'verification email has been sent email address. use url in email verify yourself.');      return false; // login aborted    }    return true;  });

please help.