Krzysztof Busłowicz

[This plugin is outdated and no longer maintained. Please use the much easier Honeypot for CF7 instead.]
Adds double opt-in functionality to CF7 forms submissions. Double opt-in means that form submitters have to confirm their identity by their email account. The plugin is ready for translation.
Double opt-in dependencies
This plugin is an add-on to <a href="https://wordpress.org/plugins/contact-form-7/" rel="ugc">Contact Form 7</a> plugin by Takayuki Miyoshi. 
Functionality of this plugin also depend on installing and activating one of the plugins, which saves Contact Form 7 submissions to WordPress database. At the time, compatible plugins are:
<ul>
<li><a href="https://wordpress.org/plugins/flamingo/" rel="ugc">Flamingo</a> by Takayuki Miyoshi</li>
<li><a href="https://wordpress.org/plugins/contact-form-cfdb7/" rel="ugc">Contact Form 7 Database Addon – CFDB7</a> by Arshid</li>
</ul>
Note that BOTH Contact Form 7 and one of the listed above plugins are required for double opt-in functionality to work.
Help and Docs
The first and most complete documentation is located on <a href="https://sirta.pl/double-opt-in-for-contact-form-7-documentation/" rel="nofollow ugc">plugin official page</a>. 
If you’re a developer, feel free to take a look at <a href="https://github.com/elkurczako/Double-Opt-in-for-CF7" rel="nofollow ugc">the plugin page on GitHub repository</a>. 
You can also seek for help on WordPress support forum.
Plugin features
<ul>
<li>One click conversion of existing CF7 forms into double opt-in enabled forms.</li>
<li>URL parameters encryption to make confirmation links safe.</li>
<li>HTML email templates with mail tags similar to used in CF7 plugin. If you know how to configure CF7 emails, double opt-in will be easy.</li>
<li>Automatic creation of the “opt-in” page to process confirmed submissions.</li>
<li>Adding a CSV file attachment to final submission email containing form data.</li>
<li>Adding file attachment to final confirmation email sent to the submitter.</li>
<li>Setting expiration time for submissions to be confirmed.</li>
<li>Ability to manually confirm forms. That can be useful if your submitter enters an invalid email address, and you are sure you want to send their submission anyway.</li>
</ul>
Additional enhancements
Apart from its main feature, Double Opt-in for CF7 adds some functions you may find nice and useful:
<ul>
<li>Custom, accessible file upload inputs for your forms which look better, can be CSS styled and allow easy selecting and deselecting files to upload. This works for every CF7 form, not only double opt-in enabled.</li>
<li>Custom, more specific validation errors for radio buttons and checkboxes for improved accessibility.</li>
<li>Option to change CSV separator when exporting submissions from Flamingo plugin. It also adds BOM to CSV exports, allowing them to be properly opened in MS Excel. </li>
<li>Additional column on Flamingo Inbound Messages screen indicating if submission is complete or still waiting for being confirmed by sender.</li>
</ul>
What is double opt-in and why use it:
Double opt-in is the safe way of receiving site visitor’s submitted input. Used with contact forms or online questionnaires or with user registration, it helps to reduce spam submissions. With GDPR laws, double opt-in is a strongly recommended way of getting user data. Because submitters have to confirm their identity from their email address, you can reduce risk of processing personal data without permission. Double – means here that user submitting the data has to give consent by checking checkbox option and additionally confirm their email-address. 
Do not forget to set acceptance field in your CF7 form if GDPR is in concern!
How Double opt-in form works:
When someone fills and submits a form with double opt-in functionality, the first CF7 email goes back to THEM. There is a confirmation link in that email, which the submitter has to click on or paste in their web browser. The link has two encrypted parameters: submission serial number and submitter email address. The page with “opt-in” slug validates the parameters with submission stored in WordPress database and initiates sending of final emails to recipient set in “All Opt-In Forms” settings. If validation fails or when submission has expired, no emails are sent. If there are no specified parameters in the URL, visitors of the “opt-in” page are redirected to “404” page.
Plugin translation
Double Opt-In can be easily translated. It is released with the translation to Polish language.

Double Opt-in for CF7

This plugin adds a double opt-in functionality to CF7 forms.

CoolHappy

deckerweb

David Decker

wpautobahn

Creame

Pacotole

Brad Johnson

Connect Polylang multilingual plugin with Elementor Page Builder: Translate your Elementor templates and show them in the correct language, native customizable Language Switcher Elementor widget, Visibility Conditions of widgets and Dynamic Tags by language and much more…
<h3>What the Plugin Does</h3>
<h4>📍 Template translation and show in the correct language</h4>
Create translations for your Elementor templates especially for header, footer or archive templates with <a href="https://be.elementor.com/visit/?bta=61741&brand=elementor&utm_campaign=wporg" rel="nofollow ugc">Elementor Pro Theme Builder</a> (affiliated link).
<ul>
<li>Automatically selects the correct translation for <a href="https://elementor.com/help/template-widget-pro/" rel="nofollow ugc">“Template Widget”</a>.</li>
<li>Automatically selects the correct translation for <code>[elementor-template id="1234"]</code> shortcodes.</li>
<li>Allow Elementor Kit translation for different settings for each language.</li>
</ul>
<h4>🔄 Language Switcher</h4>
A native Elementor Widget to easily build a nice and fully customizable language switcher:
<ul>
<li>Show or hide flags, language name, language code.</li>
<li>Vertical list, Horizontal list or styled dropdown.</li>
<li>SVG scalable flags.</li>
</ul>
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/7DUh-bggJBs?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<h4>👁️ Language Visibility Conditions</h4>
Allow to show or hide every widget, section or column by language.
<h4>🏷️ Language Dynamic Tags</h4>
Use language dynamic tags (on Elementor Pro) that you can set with an specific language or the “current” one. Available tags are:
<ul>
<li>Language Code tag type text</li>
<li>Language Name tag type text</li>
<li>Language Url tag type url</li>
<li>Language Flag tag type image</li>
</ul>
<h4>✏️ Elementor Editor integration</h4>
Now you can view the language of the current template and change to its translations or create them from the Elementor editor.
<h4>🔍 Elementor Finder integration</h4>
From Elementor Finder you can access to Polylang settings pages and go the site in the selected language.
<h4>🔨 Plugins integration fixes and tweaks</h4>
<ul>
<li>Automatically generate display conditions on new template translation.</li>
<li>Automatically generate Elementor CSS styles on create new template translation.</li>
<li>Fix home url to the current language on site-url Dynamic Tag and Search Form widget.</li>
<li>Add language url trailing slash.</li>
<li>Hide language on wp-admin for global widgets.</li>
<li>Other integration fixes.</li>
</ul>
<a href="https://coolplugins.net/product/autopoly-ai-translation-for-polylang/?ref=creame&utm_source=cpel_plugin&utm_medium=readme&utm_campaign=get_pro&utm_content=bottom_link" rel="nofollow ugc">AI-powered translation for Polylang</a> — AutoPoly instantly translates your Elementor, Gutenberg, and ACF content in one click while keeping your design exactly the same. <a href="https://coolplugins.net/product/autopoly-ai-translation-for-polylang/?ref=creame&utm_source=cpel_plugin&utm_medium=readme&utm_campaign=get_pro&utm_content=bottom_link" rel="nofollow ugc">Check it now (affiliated link)</a>
<h3>How to use</h3>
You can manage translated templates in two ways:
<ul>
<li>(recommended) create linked translations for a template and only set display conditions on the default language.</li>
<li>create separated translations for a template with their own display conditions.</li>
</ul>
See an example:
<pre><code>Site languages:
 - EN (main)
 - ES
 - IT

- Option 1 (linked translations only main language has display conditions):
╔═ Archive Template A (EN) -> condition category is "Red (EN)"
╠═ Archive Template A (ES) -> none (in front checks if category is ES translation of "Red (EN)")
╚═ Archive Template A (IT) -> none (in front checks if category is IT translation of "Red (EN)")

- Option 2 (not linked translations, all languages has display conditions):
══ Archive Template B (EN) -> condition category is "Red (EN)"
══ Archive Template B (ES) -> condition category is "Rojo (ES)"
══ Archive Template B (IT) -> condition category is "Rosso (IT)"
</code></pre>
<h3>Support</h3>
<ul>
<li><a href="https://wordpress.org/support/plugin/connect-polylang-elementor" rel="ugc">Plugin’s support forum</a> here on WordPress.org</li>
<li><a href="https://github.com/creame/connect-polylang-elementor" rel="nofollow ugc">Github plugin repo</a></li>
<li><a href="https://www.facebook.com/groups/polylang.users/" rel="nofollow ugc">Polylang User Community Group at Facebook</a></li>
<li>What is covered by our support? – All regarding THIS plugin (“Connect Polylang for Elementor”), plus the relation to Polylang, Polylang Pro, Elementor and Elementor Pro of course.</li>
<li>What is NOT covered by support? – Anything general regarding multilingual topics and WordPress. Explicitely we DO NOT offer any “WPML”, “WPBakery” or “Visual Composer” support, and also not for your theme etc.!!!</li>
</ul>
<h3>Translations</h3>
We have used the strings of Elementor and Polylang whenever possible to take advantage of the fact that they are translated into many languages. For the other strings a <code>.pot</code> file (<code>connect-polylang-elementor.pot</code>) for translators is also always included 🙂
You can collaborate with your language translations in <a href="https://translate.wordpress.org/projects/wp-plugins/connect-polylang-elementor" rel="nofollow ugc">Translating WordPress</a>
<h3>Credits</h3>
The following code/classes are licensed under the GPL.
<ul>
<li>v2. refactor and upgrade by <a href="https://profiles.wordpress.org/pacotole/" rel="nofollow ugc">Pacotole</a> at <a href="https://crea.me" rel="nofollow ugc">Creame</a></li>
<li>v2.1 Cross domain fixes based on work of <a href="https://profiles.wordpress.org/keraweb/" rel="nofollow ugc">Jory Hogeveen</a> and <a href="https://github.com/nicmare" rel="nofollow ugc">nicmare</a></li>
<li>Support <a href="https://profiles.wordpress.org/p4fbradjohnson/" rel="nofollow ugc">Brad Johnson</a></li>
<li>v1. released by <a href="https://profiles.wordpress.org/daveshine/" rel="nofollow ugc">David Decker</a></li>
<li>v1. Polylang Switcher class (Elementor Widget) and its CSS based on widget from plugin “Language Switcher for Elementor” by Solitweb (GPLv2 or later)</li>
<li>SVG flags from <a href="https://github.com/madebybowtie/FlagKit" rel="nofollow ugc">FlagKit</a> and <a href="https://wikipedia.org/" rel="nofollow ugc">Wikipedia</a></li>
</ul>
Please, send your suggestions and feedback – Thank you for using or trying out this plugin!

Connect Polylang for Elementor

very good

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Double Opt-in for CF7 vs Connect Polylang for Elementor