plaintxt.org

Easy Contact is a simple contact form that utilizes the <a href="http://www.plaintxt.org/themes/sandbox/" title="Sandbox theme for WordPress" rel="nofollow ugc">Sandbox</a> design patterns to create a highly semantic, XHTML-based contact form you can insert using <code>[easy-contact]</code> on any page or post.
Easy Contact features spam-reduction measures, GUI-based customization, carbon copying option, and more. Emails include tracked referrer information, including keywords for search-based landings, user agent, and IP.
Easy Contact is for WordPress 2.6.x and features:
<ul>
<li>Out-of-the-box function using shortcode without editing any files</li>
<li>Options menu for complete customization of form content</li>
<li>Spam reduction measures, i.e., math- and/or challenge-based question</li>
<li>Secure plugin operation and highly semantic XHTML</li>
<li>Use of the Sandbox comment form design patterns</li>
<li>An included starter CSS file with corresponding images</li>
<li>Tracked information, e.g., user agent, user referrers, IP</li>
</ul>
Based partially on the classic <a href="https://wordpress.org/extend/plugins/wp-contact-form/" title="WP Contact Form for WordPress" rel="ugc">WP Contact Form</a>, Easy Contact includes newer WordPress features (e.g., shortcode) and greatly improved form security. Easy Contact is just another contact form, except built with clean XHTML and improved security.
<h3>Use</h3>
After activating this plugin, simply use the shortcode <code>[easy-contact]</code> wherever you want the Easy Contact form. This shortcode takes no attributes.
<pre><code>[easy-contact]
</code></pre>
You will also want to customize the Easy Contact plugin from the Settings > Contact options menu. Here you can set the email address to receive submissions, text for legends, labels, and prompts, turn on spam reduction measure(s), etc.
Included with Easy Contact is a example style sheet file with images. Easy Contact features dynamic classes, so when an input field is returned to the user for an error-related issue, the input is given the class <code>error</code>, etc.
If you are using the Sandbox or a Sandbox-based theme template, you probably won’t need much (if any) CSS customization, as Easy Contact shares the same design patterns as the Sandbox comment form.
And so on. A very simple plugin.
<h3>License</h3>
Easy Contact, a plugin for WordPress, (C) 2008 by Scott Allan Wallick, is licensed under the <a href="http://www.gnu.org/licenses/gpl.html" title="GNU General Public License" rel="nofollow ugc">GNU General Public License</a>.
Easy Contact is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
Easy Contact is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Extended Options. If not, see <a href="http://www.gnu.org/licenses/" title="GNU General Public Licenses" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

Easy Contact

Easy Contact is a simple, highly extensible XHTML contact form featuring spam-reduction measures, GUI customization, and shortcode-based insertion.

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".

Easy Contact vs Contact Form 7 add confirm