WordPress – Inboxify Signup Form plugin

With the Inboxify Sign Up Form plugin for WordPress, you can easily add signup forms and checkboxes to your WordPress website.

Features

  • Use shortcodes to place signup forms on your pages and posts
  • Add a checkbox to the comment and registration form to process signups immediately
  • Add a checkbox to your users’ profile page
  • Prevent invalid signups by using one of the supported CAPTCHA plugins
  • Compatible with the Really Simple CAPTCHA, SI CAPTCHA Anti-Spam, and WP-reCAPTCHA plugins
  • Signup processing via AJAX so the page doesn’t need to reload

Installation

The official version of the Inboxify plugin in the WordPress plugin repository is currently outdated. We’re actively working on improving Inboxify itself, which means the repository update is temporarily on hold.

No worries — the latest version of the plugin is available for download below and can be installed manually. This ensures you’re always using the most up-to-date and secure version.

💡 Tip: Always make sure you have a recent backup of your website before installing new plugins. This way, you can easily restore changes if something goes wrong.

Installing the plugin via the WordPress admin

  1. Download the plugin via this link
  2. Log in to your WordPress admin
  3. Go to Plugins > Add New
  4. Click Upload Plugin at the top
  5. Select the ZIP file you just downloaded
  6. Click Install Now
  7. Click Activate Plugin

Configuration

Before you can use the plugin, you need an API key and an API secret. We recommend creating a separate API user for this. See this article for instructions.

Then, in your WordPress admin, go to Settings > Inboxify Signup Form.

Enter your API key in API Key and your API secret in Secret Key. Click Save Changes to load your lists.

Next, select the list you want to use for the plugin. Under Advanced Settings, in Supported options, choose where you want the plugin to appear.

How do I use the shortcode?

The shortcode lets you place the form in your posts and pages. The easiest way is to simply use the shortcode [inboxify_subscribe]. This displays a form with a title, email field, and subscribe button.

The shortcode supports many options, as shown in the example below:

[inboxify_subscribe t="Form title" e="Email label" fnl="First name label" fnd=1 fnr=1 mnl="Middle name label" mnd=1 mnr=0 lnl="Last name label" lnd=1 lnr=1 sl="Subscribe button text" hb="HTML code before form fields" ha="HTML code after form fields" mi="Invalid field warning" mif="Form not completed warning" ms="Success message" me="General error message"]

If you want to include HTML code in the shortcode, make sure to place it in the text mode of your post or page editor.

Sending a confirmation email

Signups via the plugin are processed through the Inboxify API. By default, these contacts are added to your list without a confirmation email.

You can enable this if you wish — and we recommend doing so.

In Inboxify, go to Settings > API and webhooks and select the confirmation email you want to use under Confirmation email.