email_worker.rb

# Sample worker that sends an email.

require 'simple_worker'
require 'mail'

class EmailWorker < SimpleWorker::Base

  attr_accessor :email_domain, :username, :password,
        :to, :from,
        :subject, :body

  def run
    init_mail

    send_mail
  end

  # Configures smtp settings to send email.
  def init_mail
    mail_conf = {:address              => "smtp.gmail.com",
             :port                 => 587,
             :domain               => email_domain,
             :user_name            => username,
             :password             => password,
             :authentication       => 'plain',
             :enable_starttls_auto => true}
    Mail.defaults do
        # This is the configuration for sending through Gmail
        delivery_method :smtp, mail_conf
    end
  end

  def send_mail
     mail = Mail.new
     mail[:from]    = from
     mail[:to]      = to
     mail[:subject] = subject
     html_part      = Mail::Part.new do
       content_type 'text/html; charset=UTF-8'
       body(body)
     end
     mail.html_part = html_part
     mail.deliver!

  end

end