Contact Form 7 Plugin by Takayuki Miyoshi
We know that you must be aware that you need a Contact Form on your website- NOT an email address.. Right? No helping the Spammers!
This is the best we have found:
Contact Form 7 can manage multiple contact forms, plus you can customize the form and the mail contents flexibly with simple markup.
The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering and so on.
Download the version available when we wrote this post : contact-form-7.3.4.2
For the latest version, support and updates click here.