Cuong Lai Dinh

Please use any of these. The most popular <a href="https://wordpress.org/plugins/search.php?q=contact+form&sort=popular" rel="ugc">contact form</a> on WordPress.
Recommended WordPress Plugins
<ul>
<li><a href="https://wordpress.org/plugins/sb-paginate/" rel="ugc">SB Paginate</a></li>
<li><a href="https://wordpress.org/plugins/sb-tbfa/" rel="ugc">SB TBFA</a></li>
</ul>
<h4>Need support</h4>
If you want to get support, please visit <a href="http://hocwp.net/blog/sau-contact-plugin/" rel="nofollow ugc">HocWP</a> blog for more detail.

Sau Contact

A simple contact form for your blog, it supports simple math captcha.

Yuichiro ABE

“Contact Form 7 add confirm” can add confirm step to “Contact Form 7”. 
“Contact Form 7 add confirm”に確認画面を追加するプラグインです。
This plug-in is not related to the developer of the “Contact Form 7”. 
このプラグインの作者はContact Form 7プラグイン開発元とは関係ありません、ご注意下さい。

Contact Form 7 add confirm

どうしてもというときに使わせていただいています。
ありがとうございます！

It's Japanese style!

"Contact Form 7 add confirm" can add confirm step to "Contact Form 7".

Sau Contact vs Contact Form 7 add confirm