Actionmailer not delivering mail, with rails 3

I am trying to make an application, that sends an email when user registers.

i put in the smtp settings for gmail in the config/application.rb file and the mail function looks like

mail(:to => "me@me.com", :subject => "Mail!", :from => "another@me.com", :content_type => "text/html")

now when i see the logs, i see that it says mail has been sent, but i never receive any mail at all...

also, when i call the mail deliver function, Emails.signed(@user).deliver, the form page does not redirect, but it works if i comment out the email sending code that is either

Emails.signed(@user).deliver

or

mail(:to => "me@me.com", :subject => "Mail!", :from => "another@me.com", :content_type => "text/html")

Thanks :)

Edit: development.rb

App::Application.configure do
  # Settings specified here will take precedence over those in config/environment.rb

  # In the development environment your application's code is reloaded on
  # every request.  This slows down response time but is perfect for development
  # since you don't have to restart the webserver when you make code changes.
  config.cache_classes = false

  # Log error messages when you accidentally call methods on nil.
  config.whiny_nils = true

  # Show full error reports and disable caching
  config.consider_all_requests_local       = true
  config.action_view.debug_rjs             = true
  config.action_controller.perform_caching = false

  # Don't care if the mailer can't send
  config.action_mailer.raise_delivery_errors = true
  config.action_mailer.perform_deliveries = true

  # Print deprecation notices to the Rails logger
  config.active_support.deprecation = :log

end