Title: Wonderful Disposable Email Blocker Author: wonderfulplugins Published: July 11, 2026 Last modified: July 11, 2026 --- Search plugins ![](https://ps.w.org/wonderful-disposable-email-blocker/assets/icon-256x256.png? rev=3603924) # Wonderful Disposable Email Blocker By [wonderfulplugins](https://profiles.wordpress.org/wonderfulplugins/) [Download](https://downloads.wordpress.org/plugin/wonderful-disposable-email-blocker.1.0.1.zip) * [Details](https://wordpress.org/plugins/wonderful-disposable-email-blocker/#description) * [Reviews](https://wordpress.org/plugins/wonderful-disposable-email-blocker/#reviews) * [Installation](https://wordpress.org/plugins/wonderful-disposable-email-blocker/#installation) * [Development](https://wordpress.org/plugins/wonderful-disposable-email-blocker/#developers) [Support](https://wordpress.org/support/plugin/wonderful-disposable-email-blocker/) ## Description Spam bots and freeloaders love disposable email addresses: they register accounts, place fake orders, and post comments with throwaway inboxes — addresses that are dead an hour later. **Wonderful Disposable Email Blocker** checks the submitted email address against a list of thousands of known disposable email domains and lets you block four areas of your site independently: * **WordPress registration** — the wp-login.php registration form. * **WooCommerce registration** — account registration on the My Account page and other WooCommerce registration forms (which WordPress-only spam plugins often miss, because WooCommerce validates registrations through its own hook). * **WooCommerce checkout** — the billing email address at checkout. * **Comments** — comments submitted with a disposable address. **You decide what happens** when a submission is blocked: * **Show an error message** (customizable, basic HTML allowed) so real visitors can switch to a permanent address, or * **Silently discard** — the registration looks successful but no account is created, and comments are quietly marked as spam. Bots never learn they were blocked. ( The checkout always shows the error message — an order cannot be silently discarded.) **Your own lists:** * **Additional blocklist** — one entry per line; a full email address blocks exactly that address, a domain blocks the domain and all its subdomains. * **Allowlist** — addresses and domains that are never blocked. The allowlist always wins, even over the disposable domain list. **Built-in safety rails:** * Logged-in administrators are never blocked — you can always test your own checkout. * Invalid email addresses are left to the form’s own validation; the plugin only ever blocks, it never approves anything. * If the domain list cannot be read, nothing is blocked — the plugin fails open, never breaks your forms. * Subdomain trick protection: “anything.disposable-domain.com” is blocked when “ disposable-domain.com” is on the list. **Domain data:** the plugin ships with a bundled copy of the community-maintained [disposable-email-domains](https://github.com/disposable-email-domains/disposable-email-domains) list (thousands of domains, CC0 / public domain) and works completely offline out of the box. Optionally, one click downloads the newest list from GitHub onto your server, after which it refreshes itself once a week. For developers: the `wonderful_disposable_email_blocker_pre_is_blocked` and `wonderful_disposable_email_blocker_is_blocked` filters short-circuit or veto any decision, and every block fires the `wonderful_disposable_email_blocker_blocked` action for logging. ### External services This plugin can download the current disposable domain list from raw.githubusercontent. com (the disposable-email-domains community project on GitHub). The download only happens when you actively opt in by clicking the “Update domain list now” button on the settings page; afterwards a weekly scheduled refresh re-downloads the list from the same URL. The request contains no personal data whatsoever — it is a plain file download. Visitor email addresses are always checked locally on your server and never leave your site. This service is provided by GitHub: [terms of service](https://docs.github.com/en/site-policy/github-terms/github-terms-of-service), [privacy statement](https://docs.github.com/en/site-policy/privacy-policies/github-privacy-statement). Without the opt-in the plugin makes no external requests at all and uses only the bundled list. ## Screenshots [⌊The settings page: blocked areas, behavior on block, and custom block/allow lists.⌉⌊ The settings page: blocked areas, behavior on block, and custom block/allow lists .⌉[ The settings page: blocked areas, behavior on block, and custom block/allow lists. ## Installation 1. Upload the `wonderful-disposable-email-blocker` folder to the `/wp-content/plugins/` directory. 2. Activate the plugin through the ‘Plugins’ menu in WordPress. 3. Go to **Settings > Disposable Email Blocker** and tick the areas you want to protect( registration, WooCommerce registration, checkout, comments). 4. Choose what happens with blocked submissions: show an error message or silently discard. 5. Optional: click **Update domain list now** to fetch the newest community list, and add your own entries to the blocklist and allowlist. ## FAQ ### What happens right after activation? Nothing yet — all four areas start switched off. Blocking starts only for the areas you explicitly enable, so activating the plugin can never break a running shop. ### Does this plugin send my visitors’ email addresses anywhere? No. All checks run locally against a list file on your server. The only external request is the optional domain list download, which you trigger yourself and which contains no personal data. ### A legitimate customer is being blocked — what do I do? Put their email address (or their whole domain) on the allowlist. The allowlist always wins over every blocklist. ### Where does the domain list come from? From the community-maintained disposable-email-domains project (CC0 / public domain). A copy is bundled with the plugin, so it works completely offline; the update button fetches the newest version from GitHub. ### Why does the checkout always show the error message, even in silent mode? A checkout ends with a real order and a payment. Faking success would mean taking the customer’s money without recording an order — so blocked checkouts always get an honest error message instead. ### Does it work with custom WooCommerce registration forms? Yes, as long as the form creates its customers through `wc_create_new_customer()`( the WooCommerce standard), because validation runs through the `woocommerce_registration_errors` hook. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Wonderful Disposable Email Blocker” is open source software. The following people have contributed to this plugin. Contributors * [ wonderfulplugins ](https://profiles.wordpress.org/wonderfulplugins/) [Translate “Wonderful Disposable Email Blocker” into your language.](https://translate.wordpress.org/projects/wp-plugins/wonderful-disposable-email-blocker) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/wonderful-disposable-email-blocker/), check out the [SVN repository](https://plugins.svn.wordpress.org/wonderful-disposable-email-blocker/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/wonderful-disposable-email-blocker/) by [RSS](https://plugins.trac.wordpress.org/log/wonderful-disposable-email-blocker/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.1 * Readme cleanup: removed third-party service names from the description. #### 1.0.0 * Initial release. ## Meta * Version **1.0.1** * Last updated **1 day ago** * Active installations **Fewer than 10** * WordPress version ** 6.2 or higher ** * Tested up to **7.0.1** * PHP version ** 7.4 or higher ** * Tags * [block email](https://wordpress.org/plugins/tags/block-email/)[disposable email](https://wordpress.org/plugins/tags/disposable-email/) [fake email](https://wordpress.org/plugins/tags/fake-email/)[woocommerce](https://wordpress.org/plugins/tags/woocommerce/) * [Advanced View](https://wordpress.org/plugins/wonderful-disposable-email-blocker/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/wonderful-disposable-email-blocker/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/wonderful-disposable-email-blocker/reviews/) ## Contributors * [ wonderfulplugins ](https://profiles.wordpress.org/wonderfulplugins/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/wonderful-disposable-email-blocker/)