ses error

gistfile1.sh

ruby-1.9.2-p180 :004 > AWS.config :access_key_id => ENV['AWS_SMTP_USERNAME'], :secret_access_key => ENV['AWS_SMTP_PASSWORD']
 => <AWS::Core::Configuration> 
ruby-1.9.2-p180 :005 > ses = AWS::SimpleEmailService.new
 => <AWS::SimpleEmailService> 
ruby-1.9.2-p180 :006 > ses.send_email :subject => 'please work', :from => '[email protected]', :to => '[email protected]', :body_text => 'sample email text', :body_html => '<h1>sample email</h1>'
AWS::SimpleEmailService::Errors::SignatureDoesNotMatch: The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.

The Canonical String for this request should have been
'POST
/

content-type:application/x-www-form-urlencoded; charset=utf-8
host:email.us-east-1.amazonaws.com
user-agent:aws-sdk-ruby/1.5.2 ruby/1.9.2 x86_64-darwin10.7.0
x-amz-date:20120516T114413Z

content-type;host;user-agent;x-amz-date
5b06c98a6e75c323d98d28e97a82218932c42563eba28e53ba15f027b42d8fda'

The String-to-Sign should have been
'AWS4-HMAC-SHA256
20120516T114413Z
20120516/us-east-1/ses/aws4_request
6a04c6da8de4954dc93b849c0bada782c3cc93bc548cfddfe96429d003b379f1'

        from /Users/kimball/.rvm/gems/ruby-1.9.2-p180@tradingpost/gems/aws-sdk-1.5.2/lib/aws/core/client.rb:273:in `return_or_raise'
        from /Users/kimball/.rvm/gems/ruby-1.9.2-p180@tradingpost/gems/aws-sdk-1.5.2/lib/aws/core/client.rb:372:in `client_request'
        from (eval):3:in `send_email'
        from /Users/kimball/.rvm/gems/ruby-1.9.2-p180@tradingpost/gems/aws-sdk-1.5.2/lib/aws/simple_email_service.rb:281:in `send_email'
        from (irb):6
        from /Users/kimball/.rvm/gems/ruby-1.9.2-p180@tradingpost/gems/railties-3.1.4/lib/rails/commands/console.rb:45:in `start'
        from /Users/kimball/.rvm/gems/ruby-1.9.2-p180@tradingpost/gems/railties-3.1.4/lib/rails/commands/console.rb:8:in `start'
        from /Users/kimball/.rvm/gems/ruby-1.9.2-p180@tradingpost/gems/railties-3.1.4/lib/rails/commands.rb:40:in `<top (required)>'
        from script/rails:6:in `require'
        from script/rails:6:in `<main>'