Unable to connect to SES

development.rb

config.after_initialize do
ActionMailer::Base.delivery_method = :amazon_ses
ActionMailer::Base.custom_amazon_ses_mailer = AWS::SES::Base.new(:secret_access_key => 'abc', :access_key_id => ''123')
end

my_mailer_controller.rb

def index

            m = Mail.new(:to => "ritprez@gmail.com", :from => "ritprez@gmail.com", :subject => "hey", :body => "from controller")
            m.deliver!
end