KitCode

OneClick Form Lite adds a lightweight contact form to your WordPress site via shortcode:
<ul>
<li>Shortcode: [oneclickform]</li>
<li>Fields: Name, Email, Subject, Message + GDPR consent checkbox</li>
<li>Anti-spam: honeypot + server-side rate limiting</li>
<li>Delivery modes:
<ul>
<li>WordPress wp_mail()</li>
<li>Built-in SMTP</li>
<li>File mode (writes messages to your uploads directory)</li>
</ul>
</li>
<li>Optional Google reCAPTCHA v3 (score-based)</li>
<li>Translations: EN (default) + FR, ES, PT-BR (via included .mo files)</li>
</ul>
Important notes: 
* This plugin does NOT store submitted messages in the WordPress database. 
* Messages are delivered by email (wp_mail/SMTP) or written to files (File mode). 
* Your host/mail provider may store emails in logs and mailboxes. 
* No minified/compiled assets are shipped with this plugin. All distributed CSS/JS is human-readable.
Documentation is included in the plugin: 
docs/oneclick-form-lite-user-guide.html
<h3>Source code</h3>
The plugin ships unminified, human-readable JS/CSS source files. No build process is used.
<h3>External services</h3>
1) This plugin can optionally integrate Google reCAPTCHA v3 to help prevent spam form submissions.
When enabled: 
– The visitor’s browser loads Google’s reCAPTCHA script: 
 https://www.google.com/recaptcha/api.js?render=YOUR_SITE_KEY 
– The browser communicates with Google to obtain a reCAPTCHA token.
On form submission: 
– The plugin sends the reCAPTCHA token to Google for verification: 
 https://www.google.com/recaptcha/api/siteverify 
– The verification request includes the token and the submitter’s IP address (remoteip) when available.
Service provider: Google LLC 
Terms of service: https://policies.google.com/terms 
Privacy policy: https://policies.google.com/privacy
2) This plugin can also send emails via an SMTP server configured by the site administrator (optional).
When SMTP is enabled and an email is sent: 
– The plugin connects to the configured SMTP host and port. 
– Email data is transmitted to the SMTP server in order to deliver the message.
Data sent to the SMTP server may include: 
– Sender and recipient addresses, subject, message content 
– Technical email headers 
– Authentication data (username/password) if configured by the site administrator
Service provider: The SMTP provider selected by the site administrator (e.g., hosting provider, Google Workspace, Microsoft 365, etc.) 
Terms of service: See the selected SMTP provider’s terms 
Privacy policy: See the selected SMTP provider’s privacy policy

OneClick Form Lite

Lightweight contact form with built-in SMTP, optional file delivery, and Google reCAPTCHA v3.

wpdebuglog

This is a highly powerful contact form 7 anti-spam add-on. It is introducing a new hidden field and check that one value is correct or not.
<h4>Features of Contact Form 7 Honeypot Plus</h4>
<ul>
<li>No configuration is needed</li>
<li>Better anti-spam functionality</li>
<li>No need any ugly captcha.</li>
</ul>

Honeypot Plus for Contact Form 7

Nice plugin

Honeypot Plus for Contact Form 7 - Adds honeypot plus anti-spam functionality to Contact Form 7 forms.

OneClick Form Lite vs Honeypot Plus for Contact Form 7