WordPress.org

Contact Form plugin from 123ContactForm.com. It requires a free account created on [123ContactForm] (http://www.123contactform.com/signup.html).
Building any type of form and survey for WordPress pages is an enjoyable experience with the user-friendly interface of 123ContactForm. The form generating process takes just 3 easy steps - edit the form, choose settings and publish. Allows adjusting codes.

Features:
* easy form building: real time WYSIWYG editor, form branching (conditional logic for dynamic web forms), file upload fields
* efficient submissions management: multiple recipients, custom "thank you" page, export data to CSV, reports over submissions
* security: CAPTCHA and smart CAPTCHA, password protection, SSL encryption
* style: theme gallery, full CSS customization
* integration with payment processors: PayPal, Authorize.Net, Google Checkout
* 3rd party apps integration: SalesForce, VerticalResponse, MailChimp, WebHook, Google+Yahoo Groups, Google Docs
* mobile version of web forms.